News: Mikroteknologi och nanovetenskaphttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyThu, 01 Dec 2022 13:56:23 +0100http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/centres/wacqt/news/Pages/nyheter/Pinpointing-the-energetic-cost-of-timekeeping1130-9094.aspxhttps://www.chalmers.se/en/centres/wacqt/news/Pages/nyheter/Pinpointing-the-energetic-cost-of-timekeeping1130-9094.aspxPinpointing the energetic cost of timekeeping<p><b>​Five research groups across Europe are now joining forces in uncovering the ultimate limitations of timekeeping to assess whether precision measurements can become more energy efficient. The €2.9 million project, named ASPECTS, is part of the EU Quantum Technologies Flagship.</b></p><div>​Measurement devices exploiting quantum properties can provide very high precision. A well-known example are atomic clocks which provide us with very precise timing and timestamps used in satellite navigation. Such precise measurements cost energy – the more precise, the higher energy cost according to recent discoveries in thermodynamics. But potentially quantum phenomena could be harnessed to make measurements both very precise and energy efficient.</div> <div> </div> <div>This is what the researchers in the ASPECTS project will investigate.</div> <div> </div> <div>“We will leverage our expertise in superconducting circuits to build a set of novel, one-of-a-kind quantum machines. By watching these machines at work, and carefully measuring fluctuations in their output, we will experimentally unveil the trade-off between precision and efficiency in small quantum systems,” says assistant professor Simone Gasparinetti, principal investigator at Chalmers University of Technology.</div> <div><h2 class="chalmersElement-H2">Quantum computer technology</h2></div> <div> </div> <div>The technology used to build the quantum machines is the same as used in Chalmers’ project of building a large quantum computer, that is, superconducting circuits operating at microwave frequencies at very low temperatures.</div> <div> </div> <div>“Our solid experience in this technology put us in a very good position to realise the proof-of-concept experiments of ASPECTS,” says Gasparinetti.</div> <div> </div> <div>One of the machines that Gasparinetti and his colleagues will build is an elemental quantum clock that ticks when placed in-between a hotter and a colder bath.</div> <div> </div> <div>“This is the simplest possible clock. By building it, we will be able to pinpoint the true energetic cost to keep time,” Gasparinetti says.</div> <div><h2 class="chalmersElement-H2">Ground-breaking advance</h2></div> <div> </div> <div>By experimentally assessing the energy cost of timekeeping and readout, the ASPECTS team aims to demonstrate so-called quantum-thermodynamic precision advantage. Such a ground-breaking advance could allow quantum sensors and other measurement devices to operate at higher energy efficiency than would be classically possible without sacrificing precision.</div> <div> </div> <div>In timekeeping, space-based applications would in particular benefit from energy-efficient, miniaturized clocks, but also nanoscale systems where heat dissipation is unwanted. Improved energy efficiency in quantum measurements in general is also important in the long-term to ensure environmental sustainability when scaling up quantum technologies, for example quantum computers.</div> <div> </div> <h2 class="chalmersElement-H2">The ASPECTS project</h2> <div>ASPECTS is a European Quantum Technologies Flagship project. It has a length of three years and funding of €2.9 million.</div> <div> </div> <div>The key milestones of the project are:</div> <div>•    To probe the ultimate thermodynamic limits on quantum clocks by building autonomous quantum clocks and measuring the energetic cost of timekeeping in the quantum domain;</div> <div>•    To measure the thermodynamic cost of qubit readout;</div> <div>•    To implement the first proof-of-principle demonstration of a quantum-thermodynamic precision advantage.</div> <div> </div> <div>The project is coordinated by Professor Mark Mitchinson at Trinity College Dublin. Other participating universities are Chalmers University of Technology, Technical University of Vienna, University of Murcia, and University of Oxford. </div> <div><br /></div> <div> </div> <div><strong>Text and photo:</strong> Ingela Roos<br /></div>Wed, 30 Nov 2022 15:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/Estrella-Torres-wins-best-student-poster-award-at-international-semiconductor-workshop.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Estrella-Torres-wins-best-student-poster-award-at-international-semiconductor-workshop.aspxBest student poster award to photonics PhD student Estrella Torres<p><b>​Congratulations to Estrella Torres, PhD student at the Photonics Laboratory, who received the award for “Best student poster award” at the International Workshop on Nitride Semiconductors in Berlin.</b></p><div>​<strong>400 posters were presented, and you were one of 12 who received an award – must be a great feeling?</strong></div> <div> </div> <div>“I did not believe it at the beginning. I was surprised and quite excited. It was my first international conference, so it is a great starting point! The prize was a box of delicious German chocolates that I shared with my group – the prize is as much theirs as mine!”</div> <div> </div> <div><strong><br /></strong></div> <div> </div> <div><strong><img src="/sv/institutioner/mc2/nyheter/PublishingImages/221118%20Estrella%20Torres%20award%20600x400px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:360px;height:251px" />Tell me about your poster.</strong><br /></div> <div> “The name of the poster is “Towards membrane-based UV-emitters with tunnel junctions”. My poster was related to the fabrication of UV resonant-cavity LEDs III-Nitride semiconductor-based . A resonant-cavity LED is a LED placed between two reflectors (optical cavity or resonator). The resonance wavelength of the cavity coincides with the emission wavelength of the LED (the LED’s color) leading to multiple improvements of the LED characteristics. For instance, the light intensity emitted perpendicular to the surface is higher compared with a conventional LED.</div> <div><br /></div> <div> </div> <div>However, the fabrication of UV resonant-cavity LEDs requires removing the substrate where the semiconductor, LED, was grown. In our group, this is done by a procedure called electrochemical etching. When using this technique, a sacrificial layer between the LED and the substrate is etched away releasing the LED. If you do not protect the LED properly, the electrochemical etching procedure will etch away not only the sacrificial layer but also important layers of the LED. The poster shows an effective way to protect the LED during the electrochemical etching.”</div> <div> </div> <div><br /></div> <div> </div> <div><strong>I’ve understood that you recently had a breakthrough in your research. Is this connected to your poster?</strong></div> <div> </div> <div> “Currently, we are working on the first demonstration of “UVB resonant-cavity LEDs with tunnel junctions using thin-film flip-chip configuration”, and the poster also includes the first results of a possible first demonstration of this type of UVB resonant-cavity LED . Right now, we are doing characterizations and interpretation of results.</div> <div> </div> <div><br /></div> <div> </div> <div>This first demonstration could be an intermedial step to the fabrication of an electrically pumped UV vertical-cavity emitting-surface laser (UV VCSEL), which is really challenging to achieve due to the huge electrical resistance of the semiconductor (among other problems). However, the electrically injected devices are useful in our daily life.</div> <div> </div> <div><br /></div> <div> </div> <div>Semiconductor UV emitters are candidates to replace the conventional UV mercury-based lamps which are fragile, bulky, and contain toxic materials. III-Nitride-based UV emitters have important applications in water, air, and food disinfection, medical treatments, UV curing, and sensing.”<br /></div> <div><br /></div> <div> <strong>What is your main focus in your research right now?</strong></div> <div>“For a short-term perspective, we are continuing with the characterization and interpretation of the UVB resonant-cavity LEDs, and probably some journal publication soon! Also, we are trying to fabricate optically pumped UVC VCSELs, whose fabrication should be easier than the electrically pumped ones. And, for a long-term perspective, we want to focus on the fabrication of electrically pumped UV VCSELs !” </div> <div> </div> <h2 class="chalmersElement-H2">Contact</h2> <h2 class="chalmersElement-H2"> </h2> <div>Estrella Torres, PhD student at Photonics Laboratory<br /></div> <div> <a href="mailto:estrella@chalmers.se">estrella@chalmers.se</a></div>Fri, 18 Nov 2022 09:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/2D-TECH-centre-day-2022.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/2D-TECH-centre-day-2022.aspx"A way to celebrate achievements and build our community"<p><b>​After several years with the pandemic, and with center days and meetings held either in digital or hybrid form, the 2D TECH Centre got to organize a center day at MC2.”It’s always easier to be creative when you’re together in a room – we can communicate so much more and effectively, and it helps us build the community within the centre”, 2D TECH leader Samuel Lara Avila says.</b></p>​2D TECH is a Vinnova competence center hosted at Chalmers University of Technology. The vision of the center is to establish an internationally visible and competitive Swedish hub for excellent research and technological innovations concerning 2D materials.<br /><div><br /></div> <div>At the second annual 2D-TECH Centre Day, hosted at Chalmers 8th November, a total of 90 participants gathered to share knowledge and establish multi-disciplinary and long-term collaboration.</div> <div><br /></div> <div>“The center day serves many reasons. It´s a way to celebrate our achievements – several projects have produced good results. It’s also an open event where we can show other people what we can do within the center. And of course, it helps us build the community – after the center day, people were coming up to me, telling me ‘this looks like cool activities, how do we get in?’”, Samuel Lara Avila says.</div> <div><h2 class="chalmersElement-H2">A smorgasbord of 2D-related topics</h2></div> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/221116%202D%20TECH%20Centre%20day.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:220px;height:352px" />The program included four invited speakers, four centrum specific presentations, and three presentations from industrial partners, stretching from biomedical applications of CVD graphene, through challenges with multifunctional composites in jet engines, to the use of 2D-materials for gas sensing and hydrogen catalysis.</div> <br /><div>Samuel Lara Avila emphazises the importance of communication within the centre, between the partners and the scientists to clarify what exactly is possible to do in the lab, and the role a centre day plays in those efforts.</div> <div><br /></div> <div>“We have such a new material and technology, we’re in a stage with the technology where maybe not everyone is as excited as when the nobel prize to graphene was announced. Maybe some are confused, even skeptical, ‘is this going to take us somewhere?’. But maybe that’s one of the points of 2D TECH, to explore together with companies and partners all the possibilities in a  long-time effort.”</div> <div><h2 class="chalmersElement-H2">Hitting the jackpot</h2></div> <div>Samuel Lara Avila says that 2D TECH now is entering its second phase, in the upcoming two years, refining a few things and finetuning others.</div> <div><br /></div> <div>“In a long-term perspective, we need to deliver with our material. We know it’s possible, we have examples in the market where graphene and 2D-materials are actually very useful, and we have many directions where we are trying”, he says. “Our partner companies give us input on for instance market needs and technology needs, and work as a bit of a compass to tell us where the search has to be done, and where we eventually will hit the jackpots.”</div> <div><br /></div> <a href="/en/centres/2d-tech/about%20us/Pages/default.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More information about 2D-TECH</a><h2 class="chalmersElement-H2">Contact</h2> Samuel Lara Avila, assistant professor<br /><div><a href="mailto:samuel.lara@chalmers.se">samuel.lara@chalmers.se</a>, +46317726507</div> <div><span id="ms-rterangecursor-start"><br /></span></div> <div><strong>Text and photos:</strong> Robert Karlsson<br /></div>Wed, 16 Nov 2022 17:00:00 +0100https://www.chalmers.se/en/news/Pages/funding-from-swedish-research-council-2022.aspxhttps://www.chalmers.se/en/news/Pages/funding-from-swedish-research-council-2022.aspxPrestigious funding to researchers at Chalmers<p><b>​​In their annual call for research grants, the Swedish Research Council distributes SEK 112 million to 29 researchers at Chalmers. </b></p><div><span style="background-color:initial">Chalmers was awarded grants in all announced areas, but most in natural and engineering sciences. </span><br /></div> <div><br /></div> <div>These researchers at Chalmers receive grants – sorted by department: <h2 class="chalmersElement-H2"> Architecture and Civil Engineering </h2> <div>Jelke Dijkstra </div> <div>Karin Lundgren </div> <h2 class="chalmersElement-H2">Biology and Biological Engineering </h2> <div>Rikard Landberg <br />Clemens Wittenbecher <br />Fredrik Westerlund </div> <h2 class="chalmersElement-H2">Electrical Engineering </h2> <div>Erik Ström <br />Henk Wymeersch </div> <h2 class="chalmersElement-H2">Physics </h2> <div>Riccardo Catena <br />Tünde Fülöp <br />Fredrik Höök <br />Thomas Nilsson <br />Timur Shegai </div> <h2 class="chalmersElement-H2">Chemistry and Chemical Engineering </h2> <div>Bo Albinsson <br />Anette Larsson <br />Christian Müller <br />Magnus Skoglundh </div> <h2 class="chalmersElement-H2">Mathematical Sciences </h2> <div>Klas Modin <br />Genkai Zhang </div> <h2 class="chalmersElement-H2">Computer Science and Engineering </h2> <div><span style="background-color:initial">Fredrik Johansson​</span></div> <div><span style="background-color:initial"></span>Moa Johansson <br />Paweł W. Woźniak </div> <h2 class="chalmersElement-H2">Mechanics and Maritime Sciences </h2> <div>Gaetano Sardina </div> <h2 class="chalmersElement-H2">Microtechnology and Nanoscience </h2> <div>Jan Grahn <br />Per Hyldgaard <br />Floriana Lombardi <br />Dag Winkler <br />Niklas Rorsman </div> <h2 class="chalmersElement-H2">Technology Management and Economics </h2> <div>Andreas Mørkved Hellenes </div> <h2 class="chalmersElement-H2">Communication and Learning in Science </h2> <div> Hans Malmström (two grants) </div> <div><br /></div> <div><a href="https://chalmersuniversity.box.com/s/248dfmt5hbjqdls8pf80xh0sb9n91lj0" title="link to pdf">Downloadable list (in Swedish)​</a></div> <div><a href="https://www.vr.se/english.html?filters=decisionsPublished%3b&amp;selectedSubject=all&amp;listStyle=list">Read more about the grants at the Swedish Research Council website​</a></div> ​​</div>Mon, 07 Nov 2022 00:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/MC2-coordinate-new-quantum-technology-project.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/MC2-coordinate-new-quantum-technology-project.aspxMC2 coordinates new European quantum technology project<p><b>​Associate professor Witlef Wieczorek from Chalmers University of Technology, alongside colleagues from four European partners, have gotten their project “SuperMeQ” funded within the EU Basic Science for Quantum Technologies call.“We look very much forward to make our project a success, and to join forces to attack important problems in the basic science underpinning quantum technologies”, says Witlef Wieczorek, who will coordinate the project.</b></p>​Quantum technologies are expected to transform digital technologies. This has led to strong world-wide support in research and innovation actions into this field, such as the European Quantum Technology Flagship and, in Sweden, the Wallenberg Centre for Quantum Technology (WACQT).<br /><div><br /></div> <div>So far quantum control can be exerted over atoms, ions, photons, and superconducting circuits, amongst others. These physical systems underpin the current advancement and near-term deployment of sophisticated quantum technologies.</div> <div><br /></div> <div><a href="https://www.supermeq.eu/" target="_blank">The SuperMeQ project</a> will target a physical system that has only recently been added to the quantum hardware: the motional degree of freedom of mechanical resonators *.</div> <div><br /></div> <div>“The center-of-mass motion * of mechanical resonators is susceptible to external forces or accelerations and, thus, an appealing degree of freedom for building novel sensing technologies”, says <strong>Witlef Wieczorek</strong>. “This can for instance concern detecting the weak gravitational force between small objects or detecting potential dark matter candidates. Preparing this degree of freedom in quantum states could result in the development of novel quantum sensors which would outperform conventional sensing approaches.”</div> <div><h2 class="chalmersElement-H2">A clever experimental idea</h2></div> <div>Yet, it is known that any quantum advantage is hampered by the undesired, unavoidable and to a great extent uncontrollable coupling to the environment, resulting in decoherence * of quantum states and, thus, the loss of quantumness. Witlef Wieczorek explains that SuperMeQ will minimize decoherence by using a clever experimental idea.</div> <br /><div>“We will levitate a superconducting microparticle in vacuum. This experimental arrangement will minimize known sources of decoherence. However, SuperMeQ may encounter unexpected or unconventional sources of decoherence, which would be a highly relevant scientific finding.”</div> <div><br /></div> <div>A key in SuperMeQ is the coupling of the center-of-mass motion of the mechanical resonators to superconducting quantum circuit technology. This experimental architecture will allow Witlef Wieczorek and his colleagues to exert quantum control over the mechanical resonators in the first place. </div> <div><h2 class="chalmersElement-H2">Explore ways to increase coupling strength</h2></div> <div>“It is important that this coupling is sufficiently strong to be able to generate quantum states in the mechanical resonators”, he says. “Another major focus of SuperMeQ is therefore to explore ways to increase this coupling strength. For this part, we will develop specifically engineered magnetic or superconducting micromechanical resonators and exploit inductive coupling schemes, which can outperform the conventionally used capacitive coupling schemes as used, for example, in superconducting quantum computers.”</div> <div><br /></div> <div>The researchers aim to contribute to the widening of our understanding of limits of quantum control. For example, decoherence and coupling strength both place limits to quantum control and, thus, can hamper a wide deployment of quantum technologies. </div> <div><h2 class="chalmersElement-H2">Better understanding of decoherence</h2></div> <div>“SuperMeQ will contribute to a better understanding of decoherence mechanisms of more macroscopic objects, which is of fundamental scientific interest”, says Witlef Wieczorek. “Furthermore, we aim at lying the foundation for the development of next generation quantum sensors based on mechanical resonators, which may find applications in fundamental research and technological applications.”</div> <div><br /></div> <div>The project started 1 October 2022, and Witlef Wieczorek has already hired a PhD student that will work within the SuperMeQ project.</div> <div><br /></div> <div>“It is key for me to give the student a good start within the project. Furthermore, among our first tasks are to get the project website going and to organize our project kick-off, which will be a hybrid meeting taking place in Barcelona on 10 and 11 of November.”</div> <h2 class="chalmersElement-H2">About SuperMeQ</h2> <div>SuperMeQ (acronym for “Exploring nonclassical states of center-of-mass mechanical motion with superconducting magneto- and levitomechanics&quot;) is an EU project that encompasses eight PI:s from five European partners: Chalmers University of Technology, Austrian Academy of Sciences (Austria), Walther-Meissner-Institute (Germany), Karlsruhe Institute of Technology (Germany) and Universidade Autonoma de Barcelona (Spain).<br /></div> <div><br /></div> <div>The project is coordinated by Witlef Wieczorek, associate professor at Chalmers University of Technology. The project started 1st October and runs for four years.</div> <br /><div>SuperMeQ aims to make three major scientific contributions to the basic science underpinning quantum technologies when utilizing the center-of-mass degree of freedom of mechanical resonators:</div> <strong>1:</strong> Understanding and minimizing decoherence processes of massive mechanical resonators,<br /><strong>2:</strong> Engineering a stronger vacuum coupling rate between a mechanical resonator and a superconducting microwave cavity *,<br /><strong>3:</strong> Studying practical and fundamental limits in generating nonclassical states of massive objects and their exploration for quantum-enhanced sensing tasks.<br /><div>Furthermore, SuperMeQ aims at educating researchers in the field of quantum technologies and making its developed technology available for activities within the European Quantum Flagship.</div> <div><a href="https://www.supermeq.eu/" target="_blank"><br /></a></div> <div><a href="https://www.supermeq.eu/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More information about SuperMeQ (official website)</a><br /></div> <div><br /></div> <h2 class="chalmersElement-H2">Contact</h2> <strong> Witlef Wieczorek</strong><br />Associate Professor, The Department of Microtechnology and Nanoscience<br /><a href="mailto:witlef.wieczorek@chalmers.se">witlef.wieczorek@chalmers.se</a>, +46317726772<br /><div><br /></div> <h2 class="chalmersElement-H2">* Short glossary</h2> <strong> Mechanical resonator:</strong> A device which exploits mechanical vibrations, for instance the tip in an atomic force microscope. A music drum is basically a mechanical resonator.<br /><strong>Center-of-mass motion:</strong> The center-of-mass motion of a mechanical resonator can be compared to the movement of a child on a swing: the swing moves back and forth around it’s center-of-mass. In SuperMeQ, we use the center-of-mass motion of a levitated particle, which is moving back and forth in a magnetic trap. We also use the center-of-mass motion of atomic force microscope-like mechanical resonators.<br /><strong>Decoherence:</strong> The process that causes a quantum state, for example a superposition or entangled state, to decay and collapse. The result is in most cases a loss of any quantum advantage.<br /><div><strong>Cavity:</strong> A cavity confines microwave photons within a fixed spatial region. In can be thought of as bouncing the microwave photons back and forth and thus enabling a stronger interaction between the photons and, in our case, the center-of-mass motion of the mechanical resonators we use.</div> <div><br /></div> <div><strong>Text:</strong> Robert Karlsson<br /><strong>Illustration:</strong> Yen Strandqvist<br /></div>Wed, 02 Nov 2022 00:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/Chip-from-Chalmers-enables-data-transmission-world-record-.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Chip-from-Chalmers-enables-data-transmission-world-record-.aspxChip from Chalmers enables data transmission world record <p><b>​An international group of researchers from Technical University of Denmark (DTU) and Chalmers University of Technology has set a world record by transmitting 1.8 petabits per second using only a single laser and a single optical chip. Victor Torres Company is head of the research group that has developed and manufactured the chip.“This chip produces a frequency comb with ideal characteristics for fibre-optical communications,” he says.</b></p><span lang="EN-GB">1 petabit corresponds to 1 million gigabits.</span> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">To put it in perspective, 1.8 petabits corresponds to twice the global internet traffic. To reach the same speed with contemporary state-of-the-art commercial equipment would require more than 1000 lasers.</span></p> <p class="MsoNormal"><span lang="EN-GB">Fundamental to this success is the light source, a specially designed optical chip which can use the light from a single infrared laser to create a rainbow spectrum of colours, or frequencies. Each colour has the ability to be isolated and imprint data and can then be reassembled and sent over an optical fibre, thus transmitting data.</span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB"><img src="/sv/institutioner/mc2/nyheter/PublishingImages/VTC%20220923%20350px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:325px" />“At Chalmers, we have been relentlessly developing the silicon nitride waveguide technology for about ten years,” says Victor Torres Company, professor at MC2 and head of the research group that developed and manufactured the chip.</span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">A key factor in the research regarding developing this kind of chip is the so called “Q factor” – the quality factor. It is a physical characteristic that measures the optical losses – the higher Q factor, the lower the losses.</span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">“Since 2019, we are one of the very few groups in the world who can manufacture integrated micoresonators with an optical quality exceeding ten million,” says Victor Torres Company.</span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">Interestingly enough, the chip was not optimized for this particular application – in fact, some of the characteristic parameters were achieved by coincidence and not by design.</span></p> <h2 class="chalmersElement-H2"><span lang="EN-GB">Exabit speeds within reach<br /></span></h2> <p class="MsoNormal"><span lang="EN-GB">“However, with efforts in my team, we are now capable to reverse engineer the process and achieve with high reproducibility microcombs for target applications in telecommunications,” says Victor Torres Company. “We are now moving towards understanding the characteristics of these newer, more reproducible microcombs based on what we term ‘photonic molecules’ because we believe that they will enable the vision of reaching exabit per second speeds in the future.”</span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">Professor Leif Katsuo Oxenløwe, Head of the Centre of Excellence for Silicon Photonics for Optical Communications (SPOC) at DTU, says:</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">“Our calculations show that—with the single chip made by Chalmers University of Technology, and a single laser—we will be able to transmit up to 100 Pbit/s. The reason for this is that our solution is scalable—both in terms of creating many frequencies and in terms of splitting the frequency comb into many spatial copies and then optically amplifying them, and using them as parallel sources with which we can transmit data. Although the comb copies must be amplified, we do not lose the qualities of the comb, which we utilize for spectrally efficient data transmission.”</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">The researchers’ solution bodes well for the future power consumption of the Internet.</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-GB"><br /></span></p> <p class="MsoNormal"><span lang="EN-GB">“In other words, our solution provides a potential for replacing hundreds of thousands of the lasers located at Internet hubs and data centres, all of which guzzle power and generate heat. We have an opportunity to contribute to achieving an Internet that leaves a smaller climate footprint,” says Leif Katsuo Oxenløwe.</span><span lang="EN-US"></span></p> <h2 class="chalmersElement-H2"><span lang="DA">&quot;Truly rewarding&quot;<br /></span></h2> <p class="MsoNormal"><span lang="DA">As for Victor Torres Company, the success with the chip relates to the reserach he conducts within his European Research Council (ERC) project.</span></p> <p class="MsoNormal"><span lang="DA"><br /></span></p> <p class="MsoNormal"><span lang="DA">”One of the central goals in the ERC project is that microcombs would enable the petabit-class transmitters that we have just demonstrated with DTU by combining this chip-scale sources with advanced multi-core fiber, so the results from this collaboration have been truly rewarding. Another serendipity aspect is the collaboration with DTU itself. This was facilitated by another research environment grant by the Swedish research council where Anders Larsson is the main PI”, he says.</span></p> <p class="MsoNormal"><span lang="DA"><br /></span></p> <p class="MsoNormal"><span lang="DA">”It has been fantastic to leverage this synergy to pursue truly collaborative science. My take from this adventure is that freedom, hard work and a bit of luck pay off in science!”</span></p> <p class="MsoNormal"><span lang="DA"> </span></p> <h2 class="chalmersElement-H2"><span lang="DA">Read the full publication</span><span lang="DA"><br /></span></h2> <a href="https://www.nature.com/articles/s41566-022-01082-z" target="_blank"><p class="MsoNormal"><span lang="DA">Petabit-per-second data transmission using a chip-scale microcomb ring resonator source<br /></span></p> </a><h2 class="chalmersElement-H2"><span lang="DA">Contact</span><span lang="EN-US"><br /></span></h2> <p class="MsoNormal"><span lang="EN-US">Professor Victor Torres Company, Chalmers University of Technology, </span><span lang="DA"><a href="mailto:torresv@chalmers.se"><span lang="EN-US">torresv@chalmers.se</span></a></span><span lang="EN-GB"></span></p> <p class="MsoNormal"><span>Professor Leif Katsuo Oxenløwe, DTU Fotonik, </span><span lang="DA"><a href="mailto:lkox@fotonik.dtu.dk"><span lang="SV">lkox@fotonik.dtu.dk<br /></span></a></span></p> <p class="MsoNormal"><span lang="DA"><br /></span></p> <div><span lang="DA"><strong>Text:</strong> Robert Karlsson (Chalmers) &amp; Lotte Krull (DTU)<br /></span></div> <div><span lang="DA"><strong>Photo:</strong> Mia Halleröd Palmgren &amp; Robert Karlsson<br /></span></div> <div><span lang="DA"></span><span></span></div> Fri, 21 Oct 2022 15:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/a-great-experience.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/a-great-experience.aspx"It was a great experience"<p><b>​Congratulations to Divya Jayasankar, PhD at the Terahertz and Millimetre Wave laboratory, who won second place in the Best Student paper competition at the International Symposium on Space Terahertz Technology (ISSTT) held from October 16-20 in Baeza, Spain.</b></p><div><strong>​<img src="/sv/institutioner/mc2/nyheter/PublishingImages/divya%202.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:375px" />How does it feel to get this award?</strong></div> <div>&quot;It feels great to be acknowledged for our work on terahertz mixer development. A big thanks to my mentors at Chalmers and DLR, Berlin, for their support and encouragement. I am very happy to have received the award from Dr. Jeffrey Hesler, CTO of Virginia diodes Inc. and Dr. Jose V. Siles from NASA-JPL  at this meeting.</div> <div>It was a great experience to meet all the experts from the THz field in person. I enjoyed discussing my work and received suggestions that could help us in future design upgrades.&quot;</div> <div><br /></div> <div> </div> <div><strong>Could you tell me about the contribution that you got the award for?</strong></div> <div> </div> <div>&quot;Earlier this year, I submitted a full paper to the ISSTT conference, presenting my work on Schottky diode mixers for supra-THz frequencies. and opted to participate in the student competition. A few weeks later they announced the top 10 finalists of the competition.</div> <div> </div> <div><br /></div> <div> </div> <div>The latter are then required to present a highlight of their work as an 8 mins presentation, followed by a poster session and discussion with the judges. Finally, they selected the top three candidates based on the novelty of the presented work, technical soundness, oral presentation, and response to the jury’s questions. I am glad to have made it to the top three!&quot;</div> <div> </div> <div><br /></div> <div> </div> <div><strong>What are you working on within your research right now?</strong></div> <div> &quot;I am currently working on upgrading my current design to improve its performance. Working at these high frequencies is very challenging; we require high-precision machining of metal blocks, and even 1-2 microns of misalignment can considerably affect the results. We have identified alternate solutions, and I am currently working on implementing it.&quot;</div> <div> </div> <h2 class="chalmersElement-H2"> </h2> <div><p></p> <h2 class="chalmersElement-H2">Contact</h2> <p></p> <h2 class="chalmersElement-H2"> </h2> <p class="chalmersElement-P">Divya Jayasankar, PhD<br /><a href="mailto:divyaj@chalmers.se">divyaj@chalmers.se</a></p></div>Thu, 20 Oct 2022 02:30:00 +0200https://www.chalmers.se/en/news/Pages/Four-Chalmers-projects-receive-KAWs-project-grants-.aspxhttps://www.chalmers.se/en/news/Pages/Four-Chalmers-projects-receive-KAWs-project-grants-.aspxFour Chalmers projects receive KAW's project grants <p><b>​No less than four research projects at Chalmers are awarded SEK 109 million in project grants by the Knut and Alice Wallenberg Foundation (KAW). The projects are evaluated to be of such high quality that they can lead to future scientific breakthroughs. ​</b></p><p class="chalmersElement-P">​<span>Out of a total of 23 research projects Associate Professor Elin Esbjörner, Professor Tünde Fülöp, Professor Christian Müller and Associate Professor Witlef Wieczorek from Chalmers are awarded grants. </span></p> <div> </div> <p class="chalmersElement-P"><span style="background-color:initial">These projects are, following an international evaluation process, considered to have such high scientific potential that they could lead to future scientific breakthroughs. </span></p> <div> </div> <p class="chalmersElement-P"><span style="background-color:initial">&quot;The evaluations are based entirely on international competitiveness and are carried out by a handful of prominent researchers in each project's research area. We are delighted to see that there are so many projects in Sweden that maintain this quality and that more and more women are able to step forward as research leaders,&quot; says Siv Andersson, responsible for basic research issues at the<a href="https://kaw.wallenberg.org/en"> Foundation​</a>. </span></p> <div> </div> <h2 class="chalmersElement-H2"><span>Project: Nanochannel Microscopy for Single Exosome Analysis </span></h2> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">Exosomes are ultrasmall biological packages that cells use to communicate. Exosomes are important for our bodies’ normal functions, but can also confer disease. This project aims to further our fundamental understanding of how exosomes mediate cell-cell communication. To accomplish this goal, new methodology is needed. </p> <div> </div> <p class="chalmersElement-P">In this project, we will therefore develop new microscopy methods and chip-based technologies, using tiny channels and traps to capture and analyse individual exosomes from biological specimen or cell models. This will provide new possibilities to obtain detailed information about the composition and content of different exosome types, which, if tied to their discrete function may open entirely new possibilities for how to use exosomes as diagnostic tools and future therapeutics, especially in the area of targeted delivery of protein- and RNA-based drugs. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Grant: </strong>SEK 29,100,000 over five years </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Principal investigator:</strong> Associate Professor <a href="/en/staff/Pages/Elin-Esbjörner-Winters.aspx">Elin Esbjörner</a>, Department of Biology and Biological Engineering </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Co-applicants in the project: </strong>Fredrik Westerlund and Christoph Langhammer (Chalmers), Samir EL Anadloussi (Karolinska Institutet) and Giovanni Volpe (Göteborgs universitet)</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <h2 class="chalmersElement-H2">Project: Extreme Plasma Flares  </h2> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">Plasma flares give rise to some of the most beautiful phenomena in the universe, such as the aurora borealis, but they can also cause damage to important technological infrastructure on ground or in space. However, it is still unknown what conditions are required to create eruptions with extremely strong energy flows. The project combines theoretical and experimental competences from both space and laboratory plasma physics to understand which combination of effects creates extreme flares. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">A better understanding will lead to tools that can warn of such flares, so that sensitive equipment can be protected. But above all, the project will contribute to a basic understanding of some of the most fascinating phenomena in physics. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Grant:</strong> SEK 26,200,000 over five years  </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Principal investigator: </strong>Professor <a href="/en/Staff/Pages/Tünde-Fülöp.aspx">Tünde Fülöp</a>, Department of Physics </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Co-applicants in the project:</strong> István Pusztai from the same department, Andris Vaivads from KTH Royal Institute of Technology, and Yuri Khotyaintsev from the Swedish Institute of Space Physics. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <h2 class="chalmersElement-H2">Project: Developing stable and sustainable organic semiconductors  </h2> <p class="chalmersElement-P"><span style="background-color:initial">Orga</span><span style="background-color:initial">nic semiconductors can make the electronics we use more sustainable and provide us with new alternatives to silicon-based technology. This technology could be used in a lot of different areas and greatly improve our lives. For example, organic semiconductors can be used in bioelectronic sensors that can help us monitor our health and wellbeing. Other examples of urgent applications are technologies to capture energy such as organic solar cells. Both research and industry see great needs and opportunities in this area, provided that organic electronics can become more stable. </span></p> <p class="chalmersElement-P"><span style="background-color:initial">Within this project, the researchers will study doping of organic semiconductors. In particular, new insights related to glass-forming materials will be used to develop more stable organic electronics. </span></p> <p class="chalmersElement-P"><strong>Grant</strong>: SEK 27,000,000 over five years  </p> <p class="chalmersElement-P"><strong>Principal investigator:</strong> Professor <a href="/en/staff/Pages/Christian-Müller.aspx">Christian Müller</a>,  Department of Chemistry and Chemical Engineering, Chalmers   </p> <p class="chalmersElement-P"><span style="background-color:initial"><strong>Co-applicants in the project: </strong>Anna Martinelli and Eva Olsson from Chalmers, Simone Fabiano and Mats Fahlman from Linköping University  </span></p> <h2 class="chalmersElement-H2"><span>Project: Light strongly interacting with mechanical motion </span></h2> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2"> </h2> <p class="chalmersElement-P">Scientists use light as a tool to acquire information about objects. This is also the case when laser light is shined onto a mirror. The reflected light field contains information about the mirror’s position. This measurement scheme is for example used in gravitational wave detectors. The information about the mirror’s position can be vastly increased by capturing the light between two mirrors, in so-called cavity optomechanical systems. These systems not only enable measuring the position of the mirror very precisely, but also controlling its motion, even to its quantum mechanical ground state. This has fascinated scientists as it allows exploring the validity of quantum physical laws for larger objects. The next major challenge in this research field is to increase the interaction between light and the motion of the mirror until it is possible to create quantum mechanical states of the mirror directly. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">The aim of this project is to reach the so-called nonlinear regime of quantum optomechanics in chip-based devices. Then, single light particles (photons) and the quantized motion of the mirror (phonons) are linked to each other in a controlled way. If one succeeds with this ambitious goal, one can, for instance, detect individual photons without destroying them and the quantum information that they carry. An important area of application of this ability lies in the field of quantum technology. For example, having access to the nonlinear regime could lead to the development of novel chip-based devices that can detect significantly smaller forces and displacements than what the most advanced technologies allow us to do today.<span> </span> </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Grant: </strong>SEK 27,000,000 over five years </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Principal investigator:</strong> Associate Professor <a href="/en/staff/Pages/witlef-wieczorek.aspx">Witlef Wieczorek​</a>, Department of Microtechnology and Nanoscience (MC2)</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Co-applicants in the project:</strong> Andreas Isacsson and Philippe Tassin (Physics) and Janine Splettstoesser (MC2), and encompasses Chalmers' expertise in experiment, theory, and artificial intelligence. </p> <p class="chalmersElement-P"><br /></p> <p class="chalmersElement-P"><strong>Read more: </strong><a href="https://kaw.wallenberg.org/en/research-projects-2022">KAW Research Projects 2022</a></p> <div> </div> <p class="chalmersElement-P"> ​</p>Fri, 14 Oct 2022 09:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/transistor-technology-from-chalmers-in-nasa-climate-satellites.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/transistor-technology-from-chalmers-in-nasa-climate-satellites.aspxTransistor technology from Chalmers in NASA climate satellites<p><b>​Since 2021, NASA launches several cube satellites for studying tropical cyclones from space. In the satellites, you can find amplifiers from the company Low Noise Factory based on transistor technology developed at the Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology. The amplifiers were designed for detecting oxygen and water in the atmosphere with very high sensitivity, and the semiconductor transistor chips were fabricated in the cleanroom laboratory at Chalmers.</b></p><div>​Since long time, Chalmers University of Technology is in the research forefront in very low-noise transistor technology for microwave detection. The spin-off company Low Noise Factory (LNF) in Gothenburg has commercialized the technology and offers the most sensitive microwave amplifiers on the market.</div> <div><br /></div> <div> </div> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/221013%20Indium%20posphide%20transistor.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:188px" />The collaboration with Chalmers helped LNF get the assignment to deliver amplifiers to the Massachusetts Institute of Technology for the NASA project TROPICS (Time-Resolved Observations of Precipitation structure and storm intensity with a Constellation of Smallsats). The purpose of TROPICS is to study tropical cyclones from space using a constellation of microsatellites, so-called cube satellites or CubeSats.</div> <div><br /></div> <div>CubeSats is a relatively new and cost-effective method in satellite design using a swarm of small units instead of one single large satellite. In TROPICS, each CubeSat is 10x10x30 cm, i.e. the size of a shoebox.</div> <div> </div> <div> </div> <div><h2 class="chalmersElement-H2">Detects water, oxygen and humidity</h2></div> <div> </div> <div>Using CubeSats in TROPICS, weather data can be swiftly updated which improves the early warning upon the emergence of cyclones and their movement patterns. Weather monitoring from the TROPICS satellites is done with radiometers which detect water, oxygen, and humidity in the atmosphere with high resolution.</div> <div><br /></div> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/221013%20Förstärkarchip%20med%20transistorer.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px;width:250px;height:88px" />Inside the radiometers one finds microwave amplifiers designed with transistors using the semiconductor indium phosphide. The semiconductor chips are manufactured in MC2's clean room at Chalmers.</div> <div><br /></div> <div>The amplifier design and the ingoing transistors are tailored for the lowest noise, which in turn means that the radiometers in TROPICS can deliver data to Earth with the highest sensitivity.</div> <div> </div> <div><br /></div> <div> </div> <div>In the summer of 2021, the first TROPICS CubeSat called Pathfinder was launched with very promising results. This was followed up this year in June by two more CubeSats which unfortunately were lost after launch. The four remaining CubeSats, planned to be launched 2023, will however be sufficient to meet TROPICS' scientific objectives.</div> <div> </div> <div> </div> <div><h2 class="chalmersElement-H2">Long-term collaboration</h2></div> <h2 class="chalmersElement-H2"> </h2> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/221013%20Mikrovågsförstärkare.png" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:154px" />To be able to manufacture transistors with very low noise, deep knowledge is required in semiconductor materials, transistor technology, microwave design and noise measurements, research that has been made possible due to the long-term collaboration between Chalmers and LNF in a value chain that goes all the way from materials science to noise measurements in industrial testbeds. </div> <div> </div> <div><br /></div> <div> </div> <div>&quot;Chalmers and LNF’s joint research resulted in that our semiconductor chips are being used in CubeSats in space. It is very inspiring for me and my PhD students and the collaboration with LNF to see how fundamental research in transistors contributes to exciting climate projects such as TROPICS&quot;, comments research group leader Jan Grahn.</div> <div> </div> <h2 class="chalmersElement-H2">Figure captions</h2> <div><strong>Figure 1:</strong> Cross-section of the indium phosphide transistor magnified 130,000X. Courtesy: Chalmers.<br /><strong>Figure 2:</strong> Amplifier chip with transistors processed in the cleanroom at MC2. Courtesy: Chalmers and Low Noise Factory AB.<br /></div> <div><strong>Figure 3:</strong> Packaged low-noise amplifier containing the transistor chip. Courtesy: Low Noise Factory AB.<br /> </div> <div> </div> <h2 class="chalmersElement-H2">Read more: Recent research in the topic</h2> <div> In a recent published scientific article from Chalmers and LNF, it is shown how the position of a single doping plane with nanometer precision in the transistor influences the noise performance in the microwave amplifier. The role of the doping plane is to create a two-dimensional gas of free electrons in the transistor which enables its outstanding sensitivity when amplifying faint signals in the GHz range. Measurement and modeling of amplifier and the semiconductor device have guided the researchers to propose an alternative physical mechanism limiting the lowest noise in the transistor.</div> <div><br /></div> <div><a href="https://ieeexplore.ieee.org/document/9783456" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />&quot;Influence of Spacer Thickness on The Noise Performance in InP HEMTs for Cryogenic LNAs&quot;</a></div> <div>Junjie Li, Arsalan Pourkabirian, Johan Bergsten, Niklas Wadefalk, Jan Grahn </div> <div>IEEE Electron Device Letters 2022 43(7) 1029 July 2022  https://ieeexplore.ieee.org/document/9783456</div> <div> </div> <div><em>The research has been funded by Swedish Research Council, Sweden’s innovation agency Vinnova and in GigaHertz Centre, a collaboration between Chalmers and industry in microwave technology.</em></div> <div><br /></div> <div> </div> <h2 class="chalmersElement-H2">Contact</h2> <div> <strong>Jan Grahn</strong><br />Professor and research group leader, Department of Microtechnology and Nanoscience, Terahertz- and millimeter Wave Laboratory</div> <div><a href="mailto:jan.grahn@chalmers.se">jan.grahn@chalmers.se</a>, +46317721055</div> Sun, 09 Oct 2022 12:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/This-award-means-a-lot-to-me.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/This-award-means-a-lot-to-me.aspx"This award means a lot to me"<p><b>​Congratulations to Han Zhou, PhD student at Microwave Electronics Laboratory, who was awarded the Young Engineer Prize at the 25th European Microwave Week, Milan, Italy. </b></p><div>​<strong><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Han%20Zhou.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:280px;height:366px" />We start off with a classic question: How does this feel?</strong></div> <div>&quot;I feel very grateful for winning the EuMC Young Engineer Prize at the 25th European Microwave Week, Milan, Italy. This is the second time this prize goes to Sweden. This paper was also nominated as the finalist for the EuMC Microwave Prize. And this award means a lot to me because it is a reward for all the hard work myself and my supervisors put into the project of researching energy-efficient hardware solutions for future communication systems.&quot;</div> <div><br /></div> <div> </div> <div><strong>What is this article about?</strong></div> <div> </div> <div>&quot;The 5G-and-beyond communication systems have changed people’s daily life and pushing for a more digitalized and connected world. However, the energy consumption of the communication systems results in a large operational cost, and an environmental impact on our world. In a communication system, the power amplifier is the most critical and power-hungry component that governs many performances aspect of the system hardware. Over the years, researchers have been continuously researching energy-efficient power amplifier architectures. In this article, we proposed a novel power amplifier architecture, called sequential circulator load modulated amplifier (SCLMA). Our proposed power amplifier architecture is very broadband and highly efficient, which is a promising candidate for future wireless communication systems.&quot;<br /></div> <div> </div> <div><strong>Why do you think this particular article got you the award?</strong></div> <div> </div> <div>&quot;The assessment to obtain this award is based on the content of the paper and the presentation. I think the novelty of this paper stands out when compared to other papers. Besides, I made a thorough presentation by introducing and presenting our previous work, the motivation and idea generation process of this work, and our future research directions.&quot;<br /></div> <div> </div> <div><br /></div> <div> </div> <div><strong>What is your research about?</strong></div> <div> </div> <div>&quot;My research is focused on highly efficient, wideband, and linear power amplifier architectures for future wireless transmitters. My research interest also includes the design of RF and mmWave integrated circuits in silicon and III-V process.&quot;</div> <div> </div> <div><br /></div> <div> </div> <div><strong>Anything more you’d like to add, regarding the prize and your research?</strong></div> <div> </div> <div>&quot;I received an Ericsson research scholarship to do a 6-month research visit at ETH Zurich this year. This visit helps us to strengthen our research collaboration and connection with Professor Hua Wang’s integrated devices, electronics, and systems (IDEAS) group from ETH. Special thanks to my supervisor Professor Christian Fager, to Professor Hua and IDEAS group members who hosted me, and thanks to Ericsson research for making this exchange possible.&quot;</div> <div> </div> <div><br /></div> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2">Contact</h2> <div> </div> <div><span><strong>Han Zhou</strong></span></div> <div> </div> <div><span>PhD Student, Microwave Electronics Laboratory<br /></span></div> <div> </div> <div><a href="mailto:han.zhou@chalmers.se"><span>han.zhou@chalmers.se<span></span></span></a><br /></div> <div> </div> <div><br /></div> <div> </div> <div>Text: Robert Karlsson<br />Photo: Han Zhou<br /></div>Wed, 05 Oct 2022 00:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/Dmitrii-Khokhriakov-awarded-with-Arne-Sjögren's-Prize.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Dmitrii-Khokhriakov-awarded-with-Arne-Sj%C3%B6gren's-Prize.aspxDmitrii Khokhriakov awarded with Arne Sjögren's Prize<p><b>​Former MC2 PhD student Dmitrii Khokhriakov has been awarded with the 2021 Arne Sjögren’s Prize. Dmitrii Khokhriakov is the eighth recipient of the prize.“I am tremendously happy that my work has been so well received and recognized with this amazing prize,” he says.</b></p><div>​​Dmitrii Khokhriakov was awarded the prize for his thesis <a href="https://research.chalmers.se/en/publication/523817" target="_blank">“Graphene spin circuits and spin-orbit phenomena in van der Waals heterostructures with topological insulators”</a>. As a matter of fact, it is the second award that he receives for his thesis – earlier this year he was awarded the Graphene Center at Chalmers/2D-tech PhD Awards for 2021. </div> <div><br /></div> <div> </div> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Dmitrii%20Khokhriakov.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:250px" />As a doctoral student, he worked with novel two-dimensional materials and studied their electron and spin transport properties. </div> <div> </div> <div> </div> <h2 class="chalmersElement-H2"> Applications in future computing devices</h2> <div> </div> <div>“One of my biggest achievements was my experimental demonstration of an interesting effect arising in heterostructures of graphene and topological insulators, namely their possibility to perform spin-to-charge conversion. This effect may find applications in future computing devices based on spin-orbit technology,” he says.</div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div>The award ceremony took place at the Excellence Initiative Nano Community Building Activity at Varberg earlier this autumn.</div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div>“I was invited to receive the prize and present my results. It was a great event, and I enjoyed discussing my results with experts from different fields,” he says.</div> <div><span id="ms-rterangecursor-start"><br /></span></div> <div>The prize money will come in handy to to buy equipment for his new interest, the FPV drone racing.<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><span><h2 class="chalmersElement-H2">Devoted to nanoelectronics - and science fiction<span style="display:inline-block"></span></h2></span>Passionate about the research about and development of nanoelectronics, Dmitrii Khokhriakov says he aims to continue his work within this research field.</div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div>“I will strive to dedicate my career to developing cutting-edge technologies that improve and advance our society”. </div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div>In addition to their mutual interest in research and science, one more thing is a shared interest between Arne Sjögren and Dmitrii Khokhriakov: their devotion to science fiction.</div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div>“Sci-fi is one of my favorite genres, both in books and motion picture. I enjoy futuristic stories set in space and dealing with the exploration of the unknown. Recently, I am enjoying a sci-fi novel series titled “The Expanse”. It is about the colonization of the Solar System and beyond. There is also a great TV series based on it.”</div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <h2 class="chalmersElement-H2">Read Dmitrii Khokhriakov’s PhD thesis</h2> <div> </div> <div><a href="https://research.chalmers.se/en/publication/523817" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />“Graphene spin circuits and spin-orbit phenomena in van der Waals heterostructures with topological insulators”</a></div> <div> </div> <div> </div> <div> </div> <h2 class="chalmersElement-H2">About Arne Sjögren’s Prize</h2> <div> </div> <div>At his passing in 2012, former chalmerist Arne Sjögren donated SEK 370,000 to Chalmers, the amount on which the prize was based. The prize of SEK 30,000 is awarded annually to the most innovative dissertation in nanoscience.</div>Tue, 04 Oct 2022 14:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/Quantum-technology-reaches-unprecedented-control-over-captured-light.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Quantum-technology-reaches-unprecedented-control-over-captured-light.aspxUnprecedented control over captured light<p><b>​Researchers in quantum technology at Chalmers University of Technology have succeeded in developing a technique to control quantum states of light in a three-dimensional cavity. In addition to creating previously known states, the researchers are the first ever to demonstrate the long-sought cubic phase state. The breakthrough is an important step towards efficient error correction in quantum computers.</b></p>​“We have shown that our technology is on par with the best in the world,” says Simone Gasparinetti, who is head of a research group in experimental quantum physics at Chalmers and one of the study’s senior authors.<br /><div><br /></div> <div>Just as a conventional computer is based on bits that can take the value 0 or 1, the most common method of building a quantum computer uses a similar approach. Quantum mechanical systems with two different quantum states, known as quantum bits (qubits), are used as building blocks. One of the quantum states is assigned the value 0 and the other the value 1. However, on account of the quantum mechanical state of superposition, qubits can assume both states 0 and 1 simultaneously, allowing a quantum computer to process huge volumes of data with the possibility of solving problems far beyond the reach of today’s supercomputers. </div> <h2 class="chalmersElement-H2">First time ever for cubic phase state</h2> <div>A major obstacle towards the realisation of a practically useful quantum computer is that the quantum systems used to encode the information are prone to noise and interference, which causes errors. Correcting these errors is a key challenge in the development of quantum computers. A promising approach is to replace qubits with resonators - quantum systems which, instead of having just two defined states, have a very large number of them. These states may be compared to a guitar string, which can vibrate in many different ways. The method is called continuous-variable quantum computing and makes it possible to encode the values 1 and 0 in several quantum mechanical states of a resonator. </div> <div><br /></div> <div>However, controlling the states of a resonator is a challenge with which quantum researchers all over the world are grappling. And the results from Chalmers provide a way of doing so. The technique developed at Chalmers allows researchers to generate virtually all previously demonstrated quantum states of light, such as for example Schrödinger's cat or Gottesman-Kitaev-Preskill (GKP)states, and the cubic phase state, a state previously described only in theory.</div> <div><br /></div> <div>“The cubic phase state is something that many quantum researchers have been trying to create in practice for twenty years. The fact that we have now managed to do this for the first time is a demonstration of how well our technique works, but the most important advance is that there are so many states of varying complexity and we have found a technique that can create any of them,” says Marina Kudra, a doctoral student at the Department of Microtechnology and Nanoscience and the study’s lead author.</div> <h2 class="chalmersElement-H2">Improvement in gate speed</h2> <div>The resonator is a three-dimensional superconducting cavity made of aluminium. Complex superpositions of photons trapped inside the resonator are generated by interaction with a secondary superconducting circuit.   The quantum mechanical properties of the photons are controlled by applying a set of electromagnetic pulses called gates. The researchers first succeeded in using an algorithm to optimise a specific sequence of simple displacement gates and complex SNAP-gates to generate the state of the photons. When the complex gates proved to be too long, the researchers found a way of making them shorter using optimum control methods to optimise the electromagnetic pulses.<br /></div> <div><br /></div> <div>“The drastic improvement in the speed of our SNAP gates allowed us to mitigate the effects of decoherence in our quantum controller, pushing this technology one step forward. We have shown that we have full control over our quantum mechanical system,” says Simone Gasparinetti.</div> <div><br /></div> <div>Or, to put it more poetically: </div> <div><br /></div> <div>“I captured light in a place where it thrives and shaped it in some truly beautiful forms,” says Marina Kudra.</div> <div><br /></div> <div>Achieving this result was also dependent on the high quality of the physical system (the aluminium resonator itself and the superconducting circuit.) Marina Kudra has previously shown how the aluminium cavity is created by first milling it, and then making it extremely clean by methods including heating it to 500 degrees Centigrade and washing it with acid and solvent. The electronics that apply the electromagnetic gates to the cavity were developed in collaboration with the Swedish company Intermodulation Products.</div> <div><br /></div> <h2 class="chalmersElement-H2">Research part of WACQT research programme</h2> <div>The research was conducted at Chalmers within the framework of the Wallenberg Centre for Quantum Technology (WACQT), a comprehensive research programme, the aim of which is to make Swedish research and industry leaders in quantum technology. The initiative is led by Professor Per Delsing and a main goal is to develop a quantum computer. </div> <div><br /></div> <div>“At Chalmers we have the full stack for building a quantum computer, from theory to experiment, all under one roof. Solving the challenge of error correction is a major bottleneck in the development of large-scale quantum computers, and our results are proof for our culture and ways of working,” says Per Delsing. </div> <br /><em>The article &quot;Robust Preparation of Wigner-Negative States with Optimized SNAP-Displacement Sequences&quot; was published in the journal PRX Quantum and was written by Marina Kudra, Mikael Kervinen, Ingrid Strandberg, Shahnawaz Ahmed, Marco Scigliuzzo, Amr Osman, Daniel Pérez Lozano, Mats O. Tholén, Riccardo Borgani, David B. Haviland, Giulia Ferrini, Jonas Bylander, Anton Frisk Kockum, Fernando Quijandría, Per Delsing, and Simone Gasparinetti. </em><br /><div><br /></div> <div><a href="http://www.doi.org/10.1103/PRXQuantum.3.030301"><span>doi.org/10.1103/PRXQuantum.3.030301<span style="display:inline-block"></span><span style="display:inline-block"></span></span><br /></a></div> <div><a href="http://www.doi.org/10.1103/PRXQuantum.3.030301"><br /></a></div> <div><strong>For more information, please contact: </strong><br /></div> <div><br /></div> <div>Marina Kudra, PhD-student at the Department of Microtechnology and Nanoscience, Division of Quantum Technology, Chalmers University of Technology, + 46 (0)790 398 486, <a href="mailto:kudra@chalmers.se">kudra@chalmers.se</a><br /></div> <div><br /></div> <div>Simone Gasparinetti, Assistant Professor at the Department of Microtechnology and Nanoscience, Division of Quantum Technology, Chalmers University of Technology. Principal Investigator of the Wallenberg Centre for Quantum Technology: +46 (0)31 772 65 73, <a href="mailto:simoneg@chalmers.se">simoneg@chalmers.se </a><br /></div>Tue, 27 Sep 2022 11:00:00 +0200https://www.chalmers.se/en/areas-of-advance/materials/news/Pages/2022-tandem-seminar.aspxhttps://www.chalmers.se/en/areas-of-advance/materials/news/Pages/2022-tandem-seminar.aspx2022 year's Tandem Webinars<p><b>​Here you will find 2022 all Tandem Webinars. All the webinars can be watched afterwards via Chalmers Play. ​</b></p><div></div> <div><span style="background-color:initial"><b>Upcoming webinars:</b></span></div> <div><b><br /></b><span style="background-color:initial"><b></b><div><span style="background-color:initial;font-weight:700">2 February, 2023. TANDEM SEMINAR</span><span style="background-color:initial">:</span><span style="background-color:initial;font-weight:700"> </span><b>Material recycling –  possibilities, shortcomings and policy instruments<br /></b><strong>Focus: </strong><span style="background-color:initial"><strong>Metal recycling.</strong></span></div> <span></span><div>Welcome to a webinar with Christer Forsgren, Consultant in Industrial Recycling and Christian Ekberg, Prof. Energy and Material, Industrial Materials Recycling and Nuclear Chemistry. <br /><strong>Moderator:</strong> Leif Asp.<br /><strong>Time:</strong> 12:00-13:00<br /><strong>Place:</strong> Online, platform Zoom.<br /><br /><a href="https://ui.ungpd.com/Surveys/51245349-3b86-4eab-b85e-d967630fed3d" style="outline:0px;font-size:16px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a><a href="https://ui.ungpd.com/Surveys/51245349-3b86-4eab-b85e-d967630fed3d" style="font-size:16px"><div style="display:inline !important">Register to the webinar</div></a><br /><br />December, 2022 TBA</div> <br /><b>Wat</b></span><span style="background-color:initial;font-weight:700">ch 2022 year´s seminars on Chalmers Play</span><span style="background-color:initial;font-weight:700">:<br /></span>5 October: <span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="background-color:initial;font-weight:700">– </span><a href="https://play.chalmers.se/media/Tandem%20Webinar%20%E2%80%93%20Metallic%20nanoalloys%20for%20next%20generation%20optical%20hydrogen%20sensors/0_3az34hxt"><span style="background-color:initial">M</span><span style="background-color:initial">etallic nanoalloys for next generation optical hydrogen sensors</span></a></div> <div><span style="background-color:initial">Welcome to Professor Christoph Langhammer and Lars Bannenberg´s Tandem webinar. Hydrogen: clean &amp; renewable energy carrier, with water as the only emission. But it is highly flammable when mixed with air. Very efficient and effective sensors are needed.​ <br /><a href="https://play.chalmers.se/media/Tandem%20Webinar%20%E2%80%93%20Metallic%20nanoalloys%20for%20next%20generation%20optical%20hydrogen%20sensors/0_3az34hxt"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play</a></span></div> <div><span style="background-color:initial;font-weight:700"><br /></span></div> <div><span style="background-color:initial;font-weight:700">8 September: </span><span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="background-color:initial;font-weight:700">– </span><span style="background-color:initial"><b>New Insulation Materials for High Voltage Power Cables<br /></b>In this webinar two hot topics are covered by Christian Müller, Professor at the Department of Chemistry and Chemical Engineering, Chalmers University of Technology, and Per-Ola Hagstrand,  Expert at Borealis Innovation Centre. Adjunct Professor at Applied Chemistry, Chalmers University of Technology.<br /><span></span><a href="https://play.chalmers.se/media/Tandem%20Webinar%20%20%E2%80%93%20%20New%20Insulation%20Materials%20for%20High%20Voltage%20Power%20Cables/0_qdinuvcl"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play​</a>​<br /><br /><br /></span><div><span style="background-color:initial;font-weight:700">11 April</span><span style="background-color:initial;font-weight:700">: </span><span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="font-weight:700;background-color:initial">– </span><span style="background-color:initial"><b>Perspectives on cellulose nanocrystals<br /></b></span><span style="font-size:16px">In this tandem webinar</span><span style="font-size:16px;background-color:initial"> </span><span style="font-size:16px">we have two hot topics dedicated to Cellulose nanocrystals: Cellulose nanocrystals in simple and not so simple flows &amp; Using liquid crystal phase separation to fractionate cellulose nanocrystals.</span><br /></div> <div><a href="https://play.chalmers.se/media/Tandem%20Webinar%20%E2%80%93%20Perspectives%20on%20cellulose%20nanocrystals/0_lqpv4rvq" style="outline:0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play</a><div><br /></div> <div><div><span style="font-weight:700">Program:</span></div> <div><ul><li>Moderator: Leif Asp, Co-Director Chalmers Area of Advance Materials Science</li> <li>C<span style="background-color:initial">ellulose nanocrystals in simple and not so simple flows, <a href="/en/staff/Pages/roland-kadar.aspx">Roland Kádár</a>, Associate Professor, Chalmers University of Technology.</span></li> <li>U<span style="background-color:initial">sing liquid crystal phase separation to fractionate cellulose nanocrystals.<a href="https://wwwen.uni.lu/recherche/fstm/dphyms/people/jan_lagerwall"> Jan Lagerwall</a>, Professor at the Physics &amp; Materials Science Research Unit in the University of Luxembourg.</span> </li></ul></div></div></div> <div><br /></div> <div><span style="font-weight:700;background-color:initial">30 May: </span><span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="background-color:initial;font-weight:700">– </span><b><span></span>Lipid nanoparticles for mRNA delivery</b><br /><span style="background-color:initial"><a href="https://play.chalmers.se/media/Watch%20the%20webinar%20%E2%80%93%20Lipid%20nanoparticles%20for%20mRNA%20delivery/0_4y0mw1ss"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play</a><br />Organizer: Chalmers Area of Advance Mater</span><span style="background-color:initial">ials Science.<br /></span>The role of supramolecular lipid self assembly and protein corona formation for functional mRNA delivery to cells. Two hot topics will be covered by Elin Esbjörner and Fredrik Höök​.<br /><div><br /></div> <div><ul><li>Moderator: Maria Abrahamsson, Director of Materials Science Area of Advance </li> <li><a href="/en/staff/Pages/Fredrik-Höök.aspx">Fredrik Höök</a>, <em>Professor, Nano and Biophysics, Department of Physics, Chalmers University of Technology</em>.</li> <li><span style="background-color:initial"><a href="/en/staff/Pages/Elin-Esbjörner-Winters.aspx">Elin Esbjörner</a>, </span><i>Associate Professor, Biology and Biological Engineering, Chemical Biology, Chalmers University of Technology.</i></li></ul></div></div> <div> <div><strong>Read more:</strong></div></div></div> <a href="/en/areas-of-advance/materials/news/Pages/2021-tandem-seminars.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />2021 year's Tandem Webinars</a>​.​Tue, 27 Sep 2022 00:00:00 +0200https://www.chalmers.se/en/news/Pages/Chalmers-welcomes-new-professors.aspxhttps://www.chalmers.se/en/news/Pages/Chalmers-welcomes-new-professors.aspxChalmers welcomed new professors<p><b>​On 23 September it was time for Chalmers' professorial inauguration in Runan. The professors started their activities at Chalmers on 1 July 2020 until 30 June 2022.​</b></p>​<span style="font-size:14px"><span style="background-color:initial">The professor installation is an old tradition at Chalmers and an important part of welcoming new professors while spreading information about the subject areas in which the professors work.</span></span><div><span style="font-size:14px">A total of 22 professors were installed during the evening. At the same time, artistic professors, adjunct professors, visiting professors, affiliated professors, and research professors were also presented.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>There is also an increase in the number of female professors</strong></span></div> <div><span style="font-size:14px">&quot;It is with pleasure that I can state that we are slowly equalizing the gender balance at the professorial level. This year, 32 percent of the installed professors are women, and the proportion of women in Chalmers' professors' college has increased to around 18 percent,&quot; says Stefan Bengtsson, Principal at Chalmers.</span></div> <div><span style="font-size:14px">Conference speaker Philip Wramsby welcomed and guided the guests during the evening. Both the rector and union chairman Isac Stark gave speeches. Newly installed professor Maria Abrahamsson gave a speech in physical chemistry. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">The entertainment was provided by Duratrion and the Chalmers choir. After the ceremony, a dinner was held at Kårrestaurangen where all participants' families and friends could celebrate together with the new professors. </span><span style="background-color:initial">S</span><span style="background-color:initial">ince 1959, Chalmers alumnus and composer Jan Johansson's work &quot;Life is beautiful&quot; has traditionally opened all Chalmers sessions. Due to associations with Russia and the war in Ukraine, it has been replaced with &quot;Here comes Pippi Longstocking&quot;, another famous piece by Jan Johansson. During the dinner, Professor Àrni Halldòrsson gave a speech. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="font-size:14px"></span><span></span><div><span style="font-size:14px"><strong>The professors presented:</strong></span></div> <div><span style="font-size:14px">Maria Abrahamsson, Physical Chemistry, Department of Chemistry and Chemical Engineering.</span></div> <div><span style="font-size:14px">Mohammad Al-Emrani, Steel and timber structures, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px">Derek Creaser, Chemical Engineering, Department of Chemistry and Chemical Engineering. </span></div> <div><span style="font-size:14px">Isabelle Doucet, Theory and History of Architecture, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Marco Dozza, Active Safety and road-user behavior, Department of Mechanics and Maritime Sciences.</span></div> <div><span style="font-size:14px">Maria Elmquist, Innovation Management, Department of Technology Management and Economics.</span></div> <div><span style="font-size:14px">Jonas Fredriksson, Mechatronics, Department of Electrical engineering. </span></div> <div><span style="font-size:14px">Ida Gremyr, Quality Management, Department of Technology Management and Economics. </span></div> <div><span style="font-size:14px">Àrni Halldòrsson, supply chain management, Department of Technology Management and Economics. </span></div> <div><span style="font-size:14px">Eduard Hryha, Powder Metallurgy, and Additive Manufacturing, Department Industrial and materials science.</span></div> <div><span style="font-size:14px">Ann-Margret Hvitt Strömvall, Environmental, and Urban Water Engineering, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Christoph Langhammer, Physics, Department of Physics. </span></div> <div><span style="font-size:14px">Mats Lundqvist, Entrepreneurship Didactics, Department of Technology Management and Economics.</span></div> <div><span style="font-size:14px">Max Jair Ortiz Catalán, Bionics, Department of Electrical Engineering.</span></div> <div><span style="font-size:14px">Angela Sasic Kalagasidis, Building Physics, Department of Education, Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Elsebeth Schröder, Theoretical Physics, Department of Microtechnology and Nanoscience.</span></div> <div><span style="font-size:14px">Ioannis Sourdis, Computer Engineering, Department of Computer Science and Engineering.</span></div> <div><span style="font-size:14px">Lennart Svensson, Signal Processing, Department of Electrical engineering. </span></div> <div><span style="font-size:14px">Fredrik Westerlund, Chemical Biology, Department of Biology and Biological Engineering.</span></div> <div><span style="font-size:14px">Mikael Wiberg, Interaction Design, Department of Computer Science and Engineering.</span></div> <div><span style="font-size:14px">Torsten Wik, Automatic Control, Department of Electrical engineering. </span></div> <div><span style="font-size:14px">Britt-Marie Wilén, Environmental and Wastewater Engineering, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Artistic professors:</strong></span></div> <div><span style="font-size:14px">Anna-Johanna Klasander, Urban Design, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Adjunct professors:</strong></span></div> <div><span style="font-size:14px">Morgan Andersson, Architecture for Living and Care, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px">Helmi Attia, Monitoring and control of manufacturing processes, Department of Industrial and Materials Science.</span></div> <div><span style="font-size:14px">Mingquan Bao, Microwave Electronics, Department of Microtechnology and Nanoscience.</span></div> <div><span style="font-size:14px">Mikael Coldrey, Communication systems, Department of Electrical Engineering. </span></div> <div><span style="font-size:14px">Ola Engqvist, Artificial Intelligence and Machine Learning based Drug Design, Department of Computer Science and Engineering. </span></div> <div><span style="font-size:14px">Hilda Esping Nordblom, Housing Architecture, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px">Rikard Fredriksson, Integrated vehicle and Road Safety, Department of Mechanics and Maritime Sciences. </span></div> <div><span style="font-size:14px">Renaud Gutkin, Computational mechanics of polymer materials, Department of Industrial and Materials Science.</span></div> <div><span style="font-size:14px">Karin Karlfeldt Fedje, Sustainable engineering of contaminated material, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Daniel Karlsson, Electric Power System, Department of Electrical Engineering. </span></div> <div><span style="font-size:14px">Jenny Larfeldt, Energy Conversion, Department of Space, Earth, and Environment. </span></div> <div><span style="font-size:14px">Marie Larsson, Architecture and Care, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Mikael Lind, Maritime Informatics, Department of Mechanics, and Maritime Sciences. </span></div> <div><span style="font-size:14px">Nils Lübbe, Vehicle Safety Analysis, Department of Mechanics, and Maritime Sciences. </span></div> <div><span style="font-size:14px">Henrik Magnusson, Architecture and Care, Department of Architecture and Civil Engineering. </span></div> <div><span style="font-size:14px">Anders Puranen, Nuclear Chemistry, Department of Chemistry and Chemical Engineering. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Guest professors: </strong></span></div> <div><span style="font-size:14px">Simone Fischer-Hübner, Computer Science, Department of Computer Science and Engineering.</span></div> <div><span style="font-size:14px">Steven A. Gabriel, Mechanical Engineering, Department of Space, Earth, and Environment.</span></div> <div><span style="font-size:14px">Michael Kokkolaras, Construction optimization, Department of Industrial and Materials Science.</span></div> <div><span style="font-size:14px">Åsa Lindholm Dahlstrand, Innovation Studies, Department of Technology Management and Economics.</span></div> <div><span style="font-size:14px">Doina Petrescu, Urban design and planning, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px">Christopher Robeller, digital timber design, and production, Department of Architecture and Civil Engineering.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Affiliated professors:</strong></span></div> <div><span style="font-size:14px">David Bennet, Operations Management, Department of Technology management and economics.</span></div> <div><span style="font-size:14px">Anna Kadefors, Technology Management, Department of Technology Management and Economics.</span></div> <div><span style="font-size:14px">Mihály Kovács, Mathematics, Department of Mathematical Sciences. </span></div> <div><span style="font-size:14px">Ermin Malic, Physics, Department of Physics. </span></div> <div><span style="font-size:14px">Vincenzo Palermo, Graphene Research, Department of Industrial and Materials Science.</span></div> <div><span style="font-size:14px">Ulf Petrusson, Entrepreneurship and Strategy, Department of Technology Management and Economics. </span></div> <div><span style="font-size:14px">Finn Wynstra, Supply and Operations Management, Department of Technology Management and Economics. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Research professors:</strong></span></div> <div><span style="font-size:14px">Paolo Falcone, Mechatronics, Department of Electrical engineering. </span></div> <div><span style="font-size:14px">Bengt Johansson, Internal Combustion Engine Technology, Department of Mechanics and Maritime Sciences. </span></div> <div><span style="font-size:14px">Tomas Kåberger, Industrial Energy Policy, Technology Management, and Economics. </span></div> <div><span style="font-size:14px">Verena Siewers, Microbial Synthetic Biology, Department of Biology and Biological Engineering. </span></div></div>Tue, 27 Sep 2022 00:00:00 +0200https://www.chalmers.se/en/centres/gpc/news/Pages/Ferenc-Mezei-wins-Lise-Meitner-Award-2021.aspxhttps://www.chalmers.se/en/centres/gpc/news/Pages/Ferenc-Mezei-wins-Lise-Meitner-Award-2021.aspx“Most of my research has focused on things that could be useful for others"<p><b>​​Ferenc Mezei has made several ground-breaking discoveries in neutron physics. For this he is awarded the 2021 Lise Meitner Prize.“It is certainly a great part of the satisfaction that knowledgeable people find one’s work also of some use. I think distinguished awards like this one always tend to primarily appreciate the value for general use, which is a very crucial part of the recognition,” he says.</b></p><div><strong>Ferenc Mezei</strong> is awarded for inventing the neutron spin echo method, the concept of the so-called super mirror, as well as the long pulse neutron source concept. All are ground-breaking discoveries that have moved neutron research forward and improved the speed and accuracy of neutron-based materials investigation methods. Among other things, his research is the basis for the technical design of the large-scale research facility European Spallation Source (ESS) which is now being built in Lund, where he was also technical coordinator until recently.</div> <div><span style="background-color:initial"><br /></span></div> <div style="font-size:16px"><span style="background-color:initial"><strong>Research is like solving challenging problems</strong></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">Currently, Professor Mezei is in the frontline of the development of a new type of intense accelerator-driven </span><br /></div> <div>compact neutron sources. Research is to be equated with solving challenging problems, he believes, and this is also one of his driving forces. Another one is the benefit of his research.</div> <div><br /></div> <div>“Most of my research has focused on things that could be useful for others. In my opinion it has to be like that, if one spends a substantial amount of money. The challenge and satisfaction include the conviction of “money well spent”. Developing more powerful or simpler experimental techniques is something that by its fundamental nature is motivated by the use others will make of it. Of course, it was also a drive to be one the first users of these instrumental developments,” says Ferenc Mezei.</div> <span style="font-size:16px"> </span><div><br /></div> <div>Ferenc Mezei, born in 1942 in Budapest, Hungary, is ordinary member of the Hungarian Academy of Sciences in Budapest and Adjunct professor of Physics, University of California San Diego. He has also been Professor of Physics in joint appointment by TU Berlin and Hahn-Meitner Institute, Berlin. He also worked extended periods of time in neutron research laboratories at Central Research Institute of Physics in Budapest, at Institut Laue-Langevin in Grenoble and Los Alamos National Laboratory in New Mexico. </div> <div><br /></div> <div><span style="font-size:16px;font-weight:700;background-color:initial">Economy of neutron research​</span></div> <div><br /></div> <div><span style="font-size:16px;font-weight:700;background-color:initial"></span>During the award ceremony, Ferenc Mezei will give a talk titled “The economy of neutron research”. In what way is economy connected to neutrons?</div> <div><br /></div> <div>”Neutrons are inherently expensive to produce. On one hand, the economy concerns these costs. On the other hand, neutron research primarily hinges on improving our capability of making best economy of the neutrons we can produce. Much of my research addressed this aspect. A further important aspect is the role of neutron beams can play in the economy in broader sense.”</div> <div><br /></div> <div>When he is now awarded a prize that bears Lise Meitner's name, it is with her important research work in mind.</div> <div><br /></div> <div>“Lise Meitner’s work fundamentally shaped history. One aspect of this is that she had to face multiple difficulties, tough conditions, and discriminations. Her elegance of handling all that is also admirable.”</div> <div><br /></div> <div>Text: Lisa Gahnertz</div> ​​​Tue, 06 Sep 2022 15:00:00 +0200