[HTML][HTML] The energy level spectrum of the yellow excitons in cuprous oxide

J Heckötter, A Farenbruch, D Fröhlich, M Aßmann… - Physics Reports, 2025 - Elsevier
This article discusses the experimental status achieved in the assessment of the hydrogen-
like series of Wannier–Mott excitons, using the semiconductor cuprous oxide, Cu 2 O, as …

Rydberg excitons and quantum sensing

J Heckötter, M Aßmann, M Bayer - MRS Bulletin, 2024 - Springer
Within the last few years, Rydberg excitons, bound electron–hole pairs in highly excited
states, have emerged as a promising technology platform for quantum nonlinear optics …

Neutralization of impurities by continuous-wave excitation of high- Rydberg excitons

J Heckötter, B Panda, K Brägelmann, M Harati… - Physical Review B, 2023 - APS
We investigate the neutralization of charged defects in a Cu 2 O crystal experimentally with a
continuous-wave two-color pump-probe setup. We demonstrate that the excitation of high …

Phenomenology of a Rydberg impurity in an ideal Bose-Einstein condensate

AAT Durst, MT Eiles - Physical Review Research, 2024 - APS
We investigate the absorption spectrum of a Rydberg impurity immersed in and interacting
with an ideal Bose-Einstein condensate. Here, the impurity-bath interaction range can …

Neutralization of impurities by cw-excitation of high- Rydberg-excitons

J Heckötter, B Panda, K Brägelmann… - arXiv preprint arXiv …, 2023 - arxiv.org
We investigate the neutralization of charged defects in a Cu $ _2 $ O crystal experimentally
with a cw two-color pump-probe setup. We demonstrate that the excitation of high-lying …

Large-scale characterization of monocrystals via Rydberg excitons

K Morin, D Lagarde, A Gillet, X Marie, T Boulier - Physical Review Materials, 2024 - APS
Rydberg states of excitons can reach microns in size and require extremely pure crystals.
We introduce an experimental method for the rapid and spatially resolved characterization of …

Observation of Rydberg excitons in monolayer at room temperature by Imbert-Fedorov shift spectroscopy

X Li, J Tu, Z Du, M Zha, X Li, Z Liu - Physical Review B, 2024 - APS
Rydberg excitons in transition metal dichalcogenides (TMDs) have emerged as a promising
platform for investigating the properties of open quantum systems, thanks to their large …

Direct measurement of the lifetime and coherence time of Cu2O Rydberg excitons

P Chakrabarti, K Morin, D Lagarde, X Marie… - arXiv preprint arXiv …, 2024 - arxiv.org
Rydberg states of excitons are promising quantum objects to engineer giant nonlinearities in
a solid-state system. For this purpose, a deeper understanding of the dynamics of Rydberg …

Effective interaction dynamics of Rydberg excitons

B Panda, J Heckötter, S Siegeroth, M Harati… - arXiv preprint arXiv …, 2024 - arxiv.org
Rydberg states of excitons in Cu $ _2 $ O are known to interact strongly with other carriers in
their surrounding such as other excitons, free charge carriers and static charged impurities …

Classical and semiclassical approaches to excitons in cuprous oxide

J Ertl - 2024 - elib.uni-stuttgart.de
When an electron is excited from the valence into the conduction band it leaves behind a
positively charged hole in the valence band to which it can couple through the Coulomb …