Welcome to Tomasz Smoleński's webpage


I work as a post-doc in the Quantum Photonics Group of prof. Atac Imamoglu at ETH Zurich. My current research activity is mainly focused on optical spectroscopy of strongly correlated electrons in two-dimensional materials including of monolayers of transition metal dichalcogenides. 

In January 2018 I obtained the PhD degree at Faculty of Physics, University of Warsaw. The thesis was related to magneto-optical studies of semiconductor nanostructures, namely the quantum dots doped with single transition metal ions, which I carried out in the Laboratory of Ultrafast Magneto-Spectroscopy LUMS.

Feel free to learn more about my research interests and scientific papers. You may also want to check citations at Google Scholar.

Contact: tomaszs_at_phys.ethz.ch

Research Highlights

Direct optical signature of the electronic

 Wigner crystal

If the strength of interactions between the electrons in 2D semiconductor exceeds their kinetic energy, the electrons form a spatially-ordered, Wigner crystal state. Here we provide a direct evidence for the emergence of this elusive state of matter using a novel optical technique that relies on the observation of exciton umklapp scattering in the periodic potential generated by the electrons forming the crystal.

T. Smoleński et al.,  Nature 595, 53-57 (2021)

Shubnikov-de Haas oscillations of the exciton resonance in a TMD monolayer

Upon the application of a strong magnetic field, the electronic bands of a TMD monolayer break up into a sequence of equidistant Landau levels. Here we demonstrate that the energy and linewidth of the exciton interacting with such a Landau-quantized electron system is sensitively-dependent on the Landau level filling factor thus exhibiting a prominent Shubnikov-de Haas oscillations. 

T. Smoleński et al., PRL 123, 097403 (2019)