55 citations · 116 across the 10 of their papers we have counts for
10 papers
Unlocking klockmannite: formation of colloidal quasi-2D CuSe nanocrystals and photo-physical properties arising from crystal anisotropy
Urvi Parekh, Nadiia Didukh, Samira Dabelstein +8
Copper selenide is an exceptional quasi-layered monolithic material that exhibits both semiconducting and metallic properties in adjacent visible and near-infrared (NIR) spectral r…
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…
Multipole expansion for dispersion forces -- watch this trace
Jivesh Kaushal, Chris Boldt, Stefan Scheel +2
Light-matter interaction models invariably rely on the multipole expansion of the electromagnetic potentials generated by complex charge distributions. These multipoles are typical…
Selective reflection Casimir-Polder spectroscopy in vapor cells: the influence of the thermal velocity distribution
B. Dutta, C. Boldt, G. Garcia-Arellano +4
Selective reflection is a high-resolution spectroscopic method that allows the probing of atomic and molecular gases in the near field of dielectric cell windows. It is a sensitive…
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…
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…
Effects of higher-order Casimir-Polder interactions on Rydberg atom spectroscopy
Biplab Dutta, Joao Carlos de Aquino Carvalho, Guadalupe Garcia-Arellano +5
In the extreme near-field, when the spatial extension of the atomic wavefunction is no longer negligible compared to the atom-surface distance, the dipole approximation is no longe…
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…
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…
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…