TRR 142 - Widely non-defenerate stimulated two-photon emission in semiconductors (A07)
Overview
Two-photon emission is a process in which optical transitions occur through the simultaneous emission of two photons. Here, we will focus on experimental and theoretical studies of widely non-degenerate two-photon emission stimulated by femtosecond pulses. Similar to nonlinear optical absorptions, such processes are expected to be massively enhanced whenever the involved fields differ widely in their frequency. Specifically, we want to investigate non-degenerate two-photon emission in various optically pumped semiconductors (GaAs, GaN, ZnO, Cu2O) as a function of the frequency ratio of the driving signal and idler field and, thereby, elucidate a novel type of optical nonlinearity in semiconductors.
Key Facts
- Grant Number:
- 397331621
- Research profile area:
- Optoelectronics and Photonics
- Project type:
- Research
- Project duration:
- 04/2018 - 12/2021
- Funded by:
- DFG
- Website:
-
Homepage
More Information
Publications
Microscopic simulations of high harmonic generation from semiconductors
A. Trautmann, R. Zuo, G. Wang, W.-R. Hannes, S. Yang, L.H. Thong, C. Ngo, J. Steiner, M. Ciappina, M. Reichelt, H.T. Duc, X. Song, W. Yang, T. Meier, in: M. Betz, A.Y. Elezzabi (Eds.), Ultrafast Phenomena and Nanophotonics XXVI, 2022.
Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces
F. Spreyer, C. Ruppert, P. Georgi, T. Zentgraf, ACS Nano 15 (2021) 16719–16728.
Neighboring Atom Collisions in Solid-State High Harmonic Generation
R. Zuo, A. Trautmann, G. Wang, W.-R. Hannes, S. Yang, X. Song, T. Meier, M. Ciappina, H.T. Duc, W. Yang, Ultrafast Science 2021 (2021).
Nondegenerate two-photon absorption in ZnSe: Experiment and theory
L. Krauss-Kodytek, W.-R. Hannes, T. Meier, C. Ruppert, M. Betz, Physical Review B 104 (2021).
Nondegenerate two-photon absorption in ZnSe: Experiment and theory
Show all publications
L. Krauss-Kodytek, W.-R. Hannes, T. Meier, C. Ruppert, M. Betz, Physical Review B 104 (2021).