47 citations · 100 across the 11 of their papers we have counts for
11 papers
Impact of the valence band on Rydberg excitons in cuprous oxide quantum wells
Niklas Scheuler, Jörg Main, Patric Rommel +3
The complex valence band structure of bulk cuprous oxide necessitates going beyond the parabolic approximation to precisely estimate exciton binding energies. The same is true for…
Wavefunctions and oscillator strengths of Rydberg excitons in cuprous oxide quantum wells
Leon Kühner, Patric Rommel, Jörg Main +2
We investigate the eigenstates, that is, the wavefunctions of Rydberg excitons in cuprous oxide quantum wells and derive expressions relating them to the oscillator strengths of di…
Quantum defects of Rydberg excitons in cuprous oxide: A semiclassical spherical model
Jan Ertl, Patric Rommel, Jörg Main
Excitons, i.e. the bound states of an electron and a positively charged hole are the solid state analogue of the hydrogen atom. As such they exhibit a Rydberg series, which in cupr…
Bound states in the continuum in cuprous oxide quantum wells
Angelos Aslanidis, Jörg Main, Patric Rommel +2
We propose a realistic semiconductor system containing bound states in the continuum (BICs) which allows for a practical realization. By varying the confinement strength of exciton…
Rydberg excitons in cuprous oxide: A two-particle system with classical chaos
Jan Ertl, Sebastian Rentschler, Jörg Main
When an electron in a semiconductor gets excited to the conduction band the missing electron can be viewed as a positively charged particle, the hole. Due to the Coulomb interactio…
Gaussian-process-regression-based method for the localization of exceptional points in complex resonance spectra
Patrick Egenlauf, Patric Rommel, Jörg Main
Resonances in open quantum systems depending on at least two controllable parameters can show the phenomenon of exceptional points (EPs), where not only the eigenvalues but also th…
Energy states of Rydberg excitons in finite crystals: From weak to strong confinement
Pavel A. Belov, Florian Morawetz, Sjard Ole Krüger +5
Due to quantum confinement, excitons in finite-sized crystals behave rather differently than in bulk materials. We investigate the dependence of energies of Rydberg excitons on the…
Exchange interaction in the yellow exciton series of cuprous oxide
Patric Rommel, Jörg Main, Andreas Farenbruch +2
We experimentally and numerically investigate the exchange interaction of the yellow excitons in cuprous oxide. By varying the material parameters in the numerical calculations, we…
Magneto-Stark-effect of yellow excitons in cuprous oxide
Patric Rommel, Frank Schweiner, Jörg Main +6
We investigate and compare experimental and numerical excitonic spectra of the yellow series in cuprous oxide CuO in the Voigt configuration and thus partially extend the resul…
Magnetoexcitons in cuprous oxide
Frank Schweiner, Jörg Main, Günter Wunner +6
Two of the most striking experimental findings when investigating exciton spectra in cuprous oxide using high-resolution spectroscopy are the observability and the fine structure s…
dependent exchange interaction of the ortho exciton in CuO
Frank Schweiner, Jörg Main, Günter Wunner +1
When treating the exchange interaction of Wannier excitons, usually only the leading terms of the analytic and the nonanalytic exchange interaction are considered. However, higher…