44 citations · 74 across the 11 of their papers we have counts for
11 papers
Ultrafast Electrons in Noble Metals: Orientational Relaxation, Thermalization and Cooling in Terms of Electron-Phonon Interaction
Jonas Grumm, Andreas Knorr
We investigate the momentum-resolved dynamics of conduction electrons in noble metals following ultrashort optical excitation with linearly polarized light. Using a momentum-resolv…
Theory of Non-Linear Electron Relaxation in Thin Gold Films and Their Signatures in Optical Observables
Jonas Grumm, Malte Selig, Holger Lange +1
Based on the momentum-resolved Boltzmann equation, we provide self-consistent numerical calculations of the dynamics of conduction electrons in thin noble metal films after linear…
Ab initio Maxwell-Bloch Approach for X-Ray Excitations in Two-Dimensional Materials
Joris Sturm, Ivan Maliyov, Dominik Christiansen +3
The combination of Maxwell and X-ray Bloch equations forms an appropriate framework to describe ultrafast time-resolved X-ray experiments on attosecond time scale in crystalline so…
Ultrafast Optical Control of Rashba Interactions in a TMDC Heterostructure
Henry Mittenzwey, Abhijeet Kumar, Raghav Dhingra +6
We investigate spin relaxation dynamics of interlayer excitons in a MoSe2/MoS2 heterostructure induced by the Rashba effect. In such a system, Rashba interactions arise from an out…
Data-Driven Acceleration of Multi-Physics Simulations
Stefan Meinecke, Malte Selig, Felix Köster +2
Multi-physics simulations play a crucial role in understanding complex systems. However, their computational demands are often prohibitive due to high dimensionality and complex in…
Fermionic vs. bosonic thermalization in the phonon-driven exciton dynamics: An analytic dimensionality study
Manuel Katzer, Malte Selig, Andreas Knorr
Excitons are compound particles formed from an electron and a hole in semiconductors. The impact of this substructure on the phonon-exciton interaction is described by a closed sys…
Strong Coupling of Two-Dimensional Excitons and Plasmonic Photonic Crystals: Microscopic Theory Reveals Triplet Spectra
Lara Greten, Robert Salzwedel, Tobias Göde +5
Monolayers of transition metal dichalcogenides (TMDC) are direct-gap semiconductors with strong light-matter interactions featuring tightly bound excitons, while plasmonic crystals…
Time-domain observation of interlayer exciton formation and thermalization in a MoSe/WSe heterostructure
Veronica R. Policht, Henry Mittenzwey, Oleg Dogadov +11
Vertical heterostructures (HS) of transition metal dichalcogenides (TMDs) host interlayer excitons (ILX), with electrons and holes residing in different layers. With respect to the…
Suppression and amplification of phonon sidebands in transition metal dichalcogenides by optical feedback
Thomas Tenzler, Andreas Knorr, Manuel Katzer
Transition metal dichalcogenides (TMDCs) combine both strong light-matter-interaction and strong Coulomb-interaction for the formation of optically excitable excitons. Through radi…
Impact of dark excitons on Förster type resonant energy transfer between dye molecules and atomically thin semiconductors
Manuel Katzer, Sviatoslav Kovalchuk, Kyrylo Greben +3
Interfaces of dye molecules and two-dimensional transition metal dichalcogenides (TMDCs) combine strong molecular dipole excitations with high carrier mobilities in semiconductors.…
Terahertz control of photoluminescence emission in few-layer InSe
Tommaso Venanzi, Malte Selig, Alexej Pashkin +11
A promising route for the development of opto-elelctronic technology is to use terahertz radiation to modulate the optical properties of semiconductors. Here we demonstrate the dyn…