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This article is cited in 1 scientific paper (total in 1 paper)
OPTICS AND NUCLEAR PHYSICS
Influence of free motion of atoms on atomic density-dependent effects in nonlinear laser spectroscopy of resonant gas media
V. I. Yudinabc, A. V. Taichenachevba, M. Yu. Basalaevabc, O. N. Prudnikovba, V. G. Pal'chikovde, T. Zanon-Willettef, S. N. Bagayevba a Novosibirsk State University, Novosibirsk, 630090 Russia
b Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
c Novosibirsk State Technical University, Novosibirsk, 630073 Russia
d All-Russian Research Institute of Physical and Radio Engineering Measurements,
Mendeleevo, Moscow region, 141570 Russia
e National Research Nuclear University MEPhI (Moscow Engineering Physics Institute),
Moscow, 115409 Russia
f Sorbonne Université, Observatoire de Paris, Université PSL, CNRS, LERMA, F-75005 Paris, France
Abstract:
We develop a nonlinear theory of propagation of a monochromatic light wave in a gas of two-level atoms under the condition of inhomogeneous Doppler lineshape broadening, while considering a self-consistent solution of the Maxwell–Bloch equations in the mean-field approximation using a single atom density matrix formalism. Our approach shows a significant deformation of the Doppler resonant lineshape (shift, asymmetry), which depends on the atomic density. These effects are a consequence of only the free motion of atoms in a gas and is not associated with interatomic interaction. In particular, the frequency shift of the field-linear contribution to the transmission signal is more than an order of magnitude greater than the shift due to the interatomic dipole–dipole interaction, and the first nonlinear correction has an even stronger deformation, which exceeds the effect of the interatomic interaction by three orders of magnitude. The found effects caused by the free motion of atoms require a significant revision of the existing picture of spectroscopic effects, which depend on the atomic density in a gas.
Received: 03.02.2023 Revised: 07.02.2023 Accepted: 07.02.2023
Citation:
V. I. Yudin, A. V. Taichenachev, M. Yu. Basalaev, O. N. Prudnikov, V. G. Pal'chikov, T. Zanon-Willette, S. N. Bagayev, “Influence of free motion of atoms on atomic density-dependent effects in nonlinear laser spectroscopy of resonant gas media”, Pis'ma v Zh. Èksper. Teoret. Fiz., 117:6 (2023), 406–413; JETP Letters, 117:6 (2023), 414–421
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https://www.mathnet.ru/eng/jetpl6893 https://www.mathnet.ru/eng/jetpl/v117/i6/p406
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Abstract page: | 69 | References: | 28 | First page: | 5 |
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