This article is cited in 3 scientific papers (total in 3 papers)
International school-seminar ''Excitons in crystals and semiconductor nanostructures'', dedicated to the 120th anniversary of the birth of E. F. Gross, St. Petersburg, October 10-12, 2017 Optical Properties
Critical dependence of the excitonic absorption in cuprous oxide on experimental parameters
Abstract:
We study the modification of the exciton absorption in cuprous oxide by the presence of free carriers excited through above band gap excitation. Without this pumping, the absorption spectrum below the band gap consists of the yellow exciton series with principal quantum numbers up to more than n = 20, depending on the temperature, changing over to an about constant, only slowly varying absorption above the gap. Careful injection of free carriers, starting from densities well below 1 μm−3, leads to a reduction of the band gap through correlation effects. The excitons in the Rydberg regime above n = 10 remain unaffected until the band gap approaches them. Then they loose oscillator strength and ultimately vanish upon crossing with the band gap.
We gratefully acknowledge support by the Priority Programme 1929 “Giant Interactions in Rydberg Systems”,
the TRR 160 “Coherent manipulation of interacting spin excitations in tailored semiconductors”, and the SFB 652/3
“Strong correlations in the radiation field”, all funded by the Deutsche Forschungsgemeinschaft. MB also
acknowledges support by the RF Government Grant N 14.Z50.31.0021.
Citation:
J. Heckötter, M. Freitag, M. Aßmann, D. Fröhlich, M. Bayer, P. Grünwald, S. Scheel, “Critical dependence of the excitonic absorption in cuprous oxide on experimental parameters”, Fizika Tverdogo Tela, 60:8 (2018), 1584; Phys. Solid State, 60:8 (2018), 1618–1624
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\paper Critical dependence of the excitonic absorption in cuprous oxide on experimental parameters
\jour Fizika Tverdogo Tela
\yr 2018
\vol 60
\issue 8
\pages 1584
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\crossref{https://doi.org/10.21883/FTT.2018.08.46251.19Gr}
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\jour Phys. Solid State
\yr 2018
\vol 60
\issue 8
\pages 1618--1624
\crossref{https://doi.org/10.1134/S1063783418080097}
Linking options:
https://www.mathnet.ru/eng/ftt9112
https://www.mathnet.ru/eng/ftt/v60/i8/p1584
This publication is cited in the following 3 articles:
Julian Heckötter, Binodbihari Panda, Katharina Brägelmann, Marc Aßmann, Manfred Bayer, “A Temperature Study of High‐nn Rydberg States in Cu2OCu2O”, Adv Quantum Tech, 2024
Joshua P. Rogers, Liam A. P. Gallagher, Danielle Pizzey, Jon D. Pritchett, Charles S. Adams, Matthew P. A. Jones, Chris Hodges, Wolfgang Langbein, Stephen A. Lynch, “High-resolution nanosecond spectroscopy of even-parity Rydberg excitons in
Cu2O”, Phys. Rev. B, 105:11 (2022)
Annika Konzelmann, Bettina Frank, Harald Giessen, “Quantum confined Rydberg excitons in reduced dimensions”, J. Phys. B: At. Mol. Opt. Phys., 53:2 (2020), 024001