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We are exploring the quasi-particle-, spin-, and valley dynamics in semiconductor quantum structures, based predominantly on the transition-metal dichalcogenides MoS₂, MoSe₂, WS₂, WSe₂, and their van-der-Waals heterostructures. As experimental techniques we are employing time- and spatially-resolved Kerr/Faraday rotation, time-resolved photoluminescence, Raman spectroscopy, and?four-wave mixing. The experiments are typically carried out at low temperatures, and, optionally,?in high magnetic fields.

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News and Highlights

October 2024	Our work on "Proximity-Induced Exchange Interaction and Prolonged Valley Lifetime in MoSe₂/CrSBr Van-Der-Waals Heterostructure with Orthogonal Spin Textures" is published in ACS Nano.
November 2023	Our work on "Charge Transfer and Asymmetric Coupling of MoSe₂?Valleys to the Magnetic Order of CrSBr" is published in Nano Letters.
September 2023	Our work on "Emergent trion-phonon coupling in atomically reconstructed MoSe₂-WSe_2?heterobilayers"?is published as a Letter in Physical Review Research.
January 2023	A radio report about our finding of ultrafast pseudospin quantum beats in TMDC multilayers is broadcasted in "Forschung aktuell" in "Deutschlandfunk".
August 2022	Our work on "Ultrafast pseudospin quantum beats in multilayer WSe₂ and MoSe₂" is published in Nature Communications.
August 2022	Our work on "Valley-magnetophonon resonance for interlayer excitons" is published in 2D Materials.
December 2021	Our work on "Intersubband excitations in ultrathin core-shell nanowires in the one-dimensional quantum limit probed by resonant inelastic light scattering" is published in Physical Review B.
September 2021	Our work on "Ultrafast Charge-Transfer Dynamics in Twisted MoS₂/WSe₂?Heterostructures" is published in ACS Nano.
July 2021	Our work on "Large-Scale Mapping of Moiré Superlattices by Hyperspectral Raman Imaging" is published in Advanced Materials.
May 2021	Our work on "Moiré phonons in twisted MoSe₂–WSe₂ heterobilayers and their correlation with interlayer excitons" is published in 2D Materials.
July 2020	Our work on "Low-frequency Raman scattering in WSe₂-MoSe₂ heterobilayers: Evidence for atomic reconstruction" is published in Applied Physics Letters.
January 2020	Our work on "Inelastic light scattering by intrasubband spin-density excitations in GaAs-AlGaAs quantum wells with balanced Bychkov-Rashba and Dresselhaus spin-orbit coupling: Quantitative determination of the spin-orbit field" is published in Physical Review B.

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Welcome to the pages of our research group!

News and Highlights

Optics of Semiconductor Quantum Structures