Electro-optical properties of excitons in Cu$_2$O quantum wells: II continuum states
David Ziemkiewicz, Gerard Czajkowski, Karol Karpi\'nski, Sylwia, Zieli\'nska - Raczy\'nska
TL;DR
This paper theoretically analyzes the optical properties of Rydberg excitons in Cu$_2$O quantum wells under an external electric field, focusing on Franz-Keldysh oscillations and the effects of confinement and excitonic states.
Contribution
It provides a detailed theoretical description of FK oscillations in Cu$_2$O QWs, including the influence of Rydberg excitons and quantum confinement effects.
Findings
Quantitative description of FK oscillation amplitudes and periodicity.
Identification of the influence of Rydberg excitons on optical modulation.
Analysis of confinement effects on excitonic optical responses.
Abstract
We present theoretically calculated optical functions for CuO quantum well (QW) with Rydberg excitons in an external, homogeneous electric field parallel to the QW planes for the energy region above the gap, suitable to observe the Franz-Keldysh (FK) oscillations. We quantitatively describe the amplitudes and periodicity of FK modulations and the influence of both Rydberg excitons and confinement effect on this phenomenon.
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Taxonomy
TopicsChemical and Physical Properties of Materials · Advanced Chemical Physics Studies · Advanced Physical and Chemical Molecular Interactions