Witlef Wieczorek

​Assistant Professor
Department of Microtechnology and Nanoscience
Quantum Technology Laboratory
​Email: witlef.wieczorek@chalmers.se
Phone: +46 31 772 6772
Office: Mc2 building, room A415
 
Research focus:
Research in my group explores the control over mechanical motion down to the quantum regime. We follow different physical approaches to pursue our research: coupling mechanical motion to light in so-called cavity optomechanical devices; using superconducting magnetic levitation to reach ultralow mechanical dissipation; and exploring embedded quantum emitters in two-dimensional materials.

Experimental techniques: 

In-house microfabrication, device simulation, optical quantum control of mechanical motion, superconducting magnetic levitation, photoluminescence spectroscopy, Hanburry Brown and Twiss correlation experiment​
 
Focus of future research:
  • Non-classical light emission from 2D materials
  • Spin-polarization coupling in single photon sources in 2D materials
  • Interface between mechanical motion and photon emitters in 2D materials 
 
Highlights of previous research:
​Demonstration of optimal state estimation in cavity optomechanical devices:
W. Wieczorek, S. G. Hofer, J. Hoelscher-Obermaier, R. Riedinger, K. Hammerer, M. Aspelmeyer
Phys. Rev. Lett. 114, 223601 (2015)

Nonclassical light generation using spontaneous parametric down conversion: 
R. Krischek, W. Wieczorek, A. Ozawa, N. Kiesel, P. Michelberger, T. Udem, H. Weinfurter
Nature Photonics 4, 170-173 (2010)

Published: Wed 22 May 2019.