Fluorescence by a polar quantum system in a polychromatic field

Fuente: arXiv
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Autores principales: Bogolyubov, Jr., Nikolai N., Soldatov, Andrey V.
Formato: Preprint
Publicado: 2024
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author Bogolyubov, Jr., Nikolai N.
Soldatov, Andrey V.
author_facet Bogolyubov, Jr., Nikolai N.
Soldatov, Andrey V.
contents Spectral properties of fluorescent radiation from a two-level quantum system with broken inversion spatial symmetry, which can be described by a model of an one-electron two-level atom whose electric dipole moment operator has permanent unequal diagonal matrix elements, were studied. The case of the excitation of this system by a polychromatic laser field, comprised of $N-1$ high-frequency components with the frequencies close to or being in resonance with the atomic transition frequency, and a low-frequency component whose frequency coincides with the Rabi frequency of the high-frequency components, was considered. Special attention was given to the resonant bichromatic and nearly resonant trichromatic excitation. In the former case it was shown that by changing the intensity of the low-frequency component, one can efficiently alter spectral properties of the fluorescent radiation of the system in the high-frequency range, while in the latter case it was found that the fluorescent behavior of the system in question reveals a kind of an optoelectronic transistor effect. Options for the experimental detection and practical usage of the effects under study were discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2412_11243
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Fluorescence by a polar quantum system in a polychromatic field
Bogolyubov, Jr., Nikolai N.
Soldatov, Andrey V.
Quantum Physics
Spectral properties of fluorescent radiation from a two-level quantum system with broken inversion spatial symmetry, which can be described by a model of an one-electron two-level atom whose electric dipole moment operator has permanent unequal diagonal matrix elements, were studied. The case of the excitation of this system by a polychromatic laser field, comprised of $N-1$ high-frequency components with the frequencies close to or being in resonance with the atomic transition frequency, and a low-frequency component whose frequency coincides with the Rabi frequency of the high-frequency components, was considered. Special attention was given to the resonant bichromatic and nearly resonant trichromatic excitation. In the former case it was shown that by changing the intensity of the low-frequency component, one can efficiently alter spectral properties of the fluorescent radiation of the system in the high-frequency range, while in the latter case it was found that the fluorescent behavior of the system in question reveals a kind of an optoelectronic transistor effect. Options for the experimental detection and practical usage of the effects under study were discussed.
title Fluorescence by a polar quantum system in a polychromatic field
topic Quantum Physics
url https://arxiv.org/abs/2412.11243