Käll Group

The Käll group is engaged in basic and applied research in nanophotonics and biophotonics, and in particular in the combination of the two (i.e. "bionanophotonics"). Current projects primarily deals with the physics and applications of resonant nanoantennas and metasurfaces made from nobel metals and/or high index dielectrics. We use both advanced lithography, for example as e-beam lithography, and wet-chemistry synthesis methods to fabricate samples. We focus on nanostructures that interacts strongly with visible and near-infrared light, which make them useful for enhancing molecular spectroscopy (as in surface-enhanced Raman scattering - SERS), for nanoscale optical biosensing (as in localized surface plasmon resonance (LSPR) sensing) and for optical manipulation using laser tweezers.
Most recent publications

Noemi Bosio, Hana Sipova-Jungova, Nils Odebo Länk, Tomasz J. Antosiewicz, Ruggero Verre, and Mikael Käll
Plasmonic versus All-Dielectric Nanoantennas for Refractometric Sensing: A Direct Comparison
ACS Photonics (2019)




Nils Odebo Länk, Peter Johansson and Mikael Käll
Directional scattering and multipolar contributions to optical forces on silicon nanoparticles in focused laser beams 

Optics Express (2018)

DOI: doi.org/10.1364/OE.26.029074






















B. Rosseaux, D. G. Baranov, M. Käll, T. Shegai, and G. Johansson

Quantum Description and Emergence of Nonlinearities in Strongly Coupled Single-Emitter Nanoantenna Systems

Physical Review B (2018)

DOI: doi.org/10.1103/PhysRevB.98.045435





















L. Shao, D. Andrén, S. Jones, P. Johansson, and M. Käll

Optically Controlled Stochastic Jumps of Individual Gold Nanorod Rotary Motors

Physical Review B (2018)

DOI: doi.org/10.1103/PhysRevB.98.085404









D. G. Baranov, R. Verre, P. Karpinski, and M. Käll

Anapole-Enhanced Intrinsic Raman Scattering from Silicon Nanodisks

ACS Photonics (2018)

DOI: 10.1021/acsphotonics.8b00480













P. Karpinski, S. Jones, D. Andrén, and M. Käll

Counter Propagating Optical Trapping of Resonant Nanoparticles Using a Uniaxial Crystal

Laser & Photonic Reviews (2018)

DOI: doi.org/10.1002/lpor.201800139










Z. Fusco, M. Rahmani, R. Bo, R. Verre, N. Motta, M. Käll, D. Neshev, and A. Tricoli

Nanostructured Dielectric Fractals on Resonant Plasmonic Metasurfaces for Selective and Sensitive Optical Sensing of Volatile Compounds

Advanced Materials (2018)
DOI: doi.org/10.1002/adma.201800931














D. Andrén, P. Karpinski, and M. Käll

Construction and Operation of a Light-Driven Gold Nanorod Rotary Motor System

Journal of Visualized Experiments (2018)

DOI: 10.3791/57947










S. Jones, D. Andrén, P. Karpinski, and M. Käll

Photothermal Heating of Plasmonic Nanoantennas: Influence on Trapped Particle Dynamics and Colloidal Distribution

ACS Photonics (2018)

DOI: 10.1021/acsphotonics.8b00231






R. Verre, N. Odebo Länk, D. Andrén, H. Sipova, and M. Käll

Large-Scale Fabrication of Shaped High Index Dielectric Nanoparticles on a Substrate and in Solution

Advanced Optical Materials (2018)

DOI: doi.org/10.1002/adom.201701253





S. Block, S. S. Acimovic, N. Odebo Länk, M. Käll and F. Höök

Antenna-Enhanced Fluorescence Correlation Spectroscopy Resolves Calcium-Mediated Lipid-Lipid-Interactions

ACS Nano (2018)

DOI: 10.1021/acsnano.7b07854



 H. Sipova, L. Shao, N. Odebo Länk, D. Andrén, and M. Käll
Photothermal DNA Release from Laser-Tweezed Individual Gold Nanomotors Driven
by Photon Angular Momentum
ACS Photonics (2018)



 T. Antosiewicz, M. Käll

A Multiscale Approach to Modeling Plasmonic Nanorod Biosensors
Journal of Physical Chemistry (2016)
DOI: 10.1021/acs.jpcc.6b01897


R. Ogier, L. Shao, M. Svedendahl, M. Käll
Continuous-Gradient Plasmonic Nanostructures Fabricated by Evaporation
on Partially Exposed Rotating Substrate
Advanced Materials (2016)
DOI: 10.1002/adma.201600112














 R. Verre, N. Maccaferri, M. Svedendahl, N. Odebo Länk, A. Dmitriev, P. Vavassori, I.V. Shvets, M. Käll
Polarization Conversion-Based Molecular Sensing Using Anisotropic Plasmonic Metasurfaces
Nanoscale (2016)
DOI: 10.1039/c6nr01654a














A. Hakonen, T. Rindzevicius, T. Schmidt, M. Stenbak, P.O. Andersson, L. Juhlin, M. Svedendahl,
A. Boisen, M. Käll
Detection of Nerve Gases Using Surface-Enhanced Raman Scattering Substrates with High
Droplet Adhesion
Nanoscale (2016)
DOI: 10.1039/C5NR06524K










R. Verre, M. Svedendahl, N. Odebo Länk, Z.-J. Yang, G. Zengin, T. Antosiewicz, M. Käll
Directional Light Extinction and Emission in a Metasurface of Tilted
Plasmonic Nanopillars
Nano Letters (2016)
DOI: 10.1021/acs.nanolett.5b03026







Z.-J. Yang, T. Antosiewicz, R. Verre, F. J. Garcia de Abajo, P. Apell, M. Käll
Ultimate Limit of Light Extinction by Nanophotonic Structures
Nano Letters (2015)
DOI: 10.1021/acs.nanolett.5b03512









R. Ogier, Y. Fang, M. Käll, M. Svedendahl
Near-Complete Photon Spin Selectivity in a Metasurface of
Anisotropic Plasmonic Antennas
Physical Review X (2015)
DOI: 10.1103/PhysRevX.5.041019








L. Shao, Z.-J. Yang, D. Andrén, P. Johansson, M. Käll
Gold Nanorods Rotary Motors Driven by Resonant Light Scattering
ACS Nano (2015)
DOI: 10.1021/acsnano.5b06311












Y. Fang, Y. Jiao, K. Xiong, R. Ogier, Z.-J. Yang, S. Gao, A. B. Dahlin, M. Käll
Plasmon Enhanced Internal Photoemission in Antenna-Spacer-Mirror
Based AuTiO2 Nanostructures
Nano Letters (2015)
DOI: 10.1021/acs.nanolett.5b01070

         A. Hakonen, M. Svedendahl, R. Ogier, Z.-J. Yang, K. Lodewijks, R. Verre, T. Shegai, P.O. Andersson, M. Käll
         Dimer-On-Mirror SERS Substrates with Attogram Sensitivity Fabricated
         by Colloidal Lithography
          Nanoscale (2015)
          DOI: 10.1039/c5nr01654

A. Lehmuskero, P. Johansson, H. Rubinsztein-Dunlop, L. Tong, M. Käll
Laser Trapping of Colloidal Metal Nanoparticles
ACS Nano (2015)
A. Hakonen, P.O. Andersson, M. Stenbaek Schmidt, T. Rindzevicius, M. Käll
Explosives and Chemical Threat Detection by Surface-Enhanced
Raman Scattering: A Review
Analytica Chimica Acta (2015)
DOI: 10.1016/j.aca.2015.04.010

R. Verre, Z. J. Yang, T. Shegai, M. Käll
Optical Magnetism and Plasmonic Fano Resonances in
Metal-Insulator-Metal Oligomers
NanoLetters 15 (3), 1952-1958 (2015)
DOI: 10.1021/nl504802r

Project Leader
Mikael Käll




Published: Mon 13 May 2013. Modified: Fri 09 Aug 2019