55 citations · 132 across the 7 of their papers we have counts for
7 papers
Interaction between Rydberg Excitons in Cuprous Oxide Revealed through Second Harmonic Generation
Dirk Semkat, Heinrich Stolz, Peter Grünwald +5
We report experimental and theoretical investigations of interacting excitons of the yellow series in cuprous oxide (CuO) with principal quantum numbers up to by means of…
Quantum many-body effects on Rydberg excitons in cuprous oxide
Dirk Semkat, Holger Fehske, Heinrich Stolz
We investigate quantum many-body effects on Rydberg excitons in cuprous oxide induced by the surrounding electron-hole plasma. Line shifts and widths are calculated by full diagona…
Rydberg excitons in the presence of an ultralow-density electron-hole plasma
J. Heckötter, M. Freitag, D. Fröhlich +7
We use two-color pump-probe spectroscopy to study Rydberg excitons in CuO in the presence of free carriers injected by above-band-gap excitation. Already at plasma densities $ρ…
Multicomponent exciton gas in cuprous oxide: cooling behaviour and the role of Auger decay
Dirk Semkat, Siegfried Sobkowiak, Florian Schöne +3
In this paper we present a hydrodynamic model to describe the dynamics of para- and orthoexcitons in cuprous oxide at ultralow temperatures inside a stress induced potential trap.…
Signatures of Quantum Coherence in Rydberg Excitons
P. Grünwald, M. Aßmann, J. Heckötter +4
Coherent optical control of individual particles has been demonstrated both for atoms and semiconductor quantum dots. Here we demonstrate the emergence of quantum coherent effects…
Superfluorescence spectra of excitons in quantum wells
P. Grünwald, G. K. G. Burau, H. Stolz +1
We study the fluorescence light emitted from GaAs excitons in semiconductor quantum wells. The excitons are modeled as interacting bosons. By combining quantum optical methods for…
Interacting multi-component exciton gases in a potential trap: phase separation and Bose-Einstein condensation
S. Sobkowiak, D. Semkat, H. Stolz +2
The system under consideration is a multi-component gas of interacting para- and orthoexcitons confined in a three dimensional potential trap. We calculate the spatially resolved o…