Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Line Shape of the Sub-Doppler Resonance in Alkali-Metal Atomic Vapors in the Field of Counterpropagating Bichromatic Laser Beams. / Mikhailov, A. M.; Boudot, R.; Brazhnikov, D. V.
в: Journal of Experimental and Theoretical Physics, Том 133, № 6, 12.2021, стр. 696-710.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Line Shape of the Sub-Doppler Resonance in Alkali-Metal Atomic Vapors in the Field of Counterpropagating Bichromatic Laser Beams
AU - Mikhailov, A. M.
AU - Boudot, R.
AU - Brazhnikov, D. V.
N1 - Funding Information: The work of A.M. Mikhailov and D.V. Brazhnikov was supported by the Russian Science Foundation (grant no. 17-72-20089) and the Russian Foundation for Basic Research (grant no. 20-02-00075). R. Boudot is grateful to Agence Nationale de la Recherche for support under project LabeX FIRST-TF (ANR grant no. 10-LABX-0048) Publisher Copyright: © 2021, Pleiades Publishing, Inc.
PY - 2021/12
Y1 - 2021/12
N2 - High-contrast sub-Doppler resonances observed in alkali-metal atomic vapors in the field of counterpropagating bichromatic laser beams are perspective in quantum metrology for designing a miniature optical frequency standard. Until now, these nonlinear resonances have been investigated only experimentally or using numerical calculations. In our opinion, the development of a simplified theoretical model of the observed resonances, which would provide explicit compact analytic expressions describing the line shape of the resonance, would be extremely important for further evolution of the theory. In this study, we perform such theoretical analysis based on the three-level Λ scheme of the atom. We investigate two regimes, viz., the regime of a low-intensity standing wave with close intensities of counterpropagating beams (I1 ≈ I2) and the regime of a probe wave, in which one of the beams has a noticeably lower intensity than that of the oppositely propagating beam (I2 ≪ I1). The resulting analytic expressions make it possible to determine qualitative differences between these regimes and to separate explicitly the contributions from different nonlinear effects to the light field absorption, including the terms responsible for the formation of a high-contrast sub-Doppler peak. The expressions derived here are in qualitative agreement with experimental data obtained earlier.
AB - High-contrast sub-Doppler resonances observed in alkali-metal atomic vapors in the field of counterpropagating bichromatic laser beams are perspective in quantum metrology for designing a miniature optical frequency standard. Until now, these nonlinear resonances have been investigated only experimentally or using numerical calculations. In our opinion, the development of a simplified theoretical model of the observed resonances, which would provide explicit compact analytic expressions describing the line shape of the resonance, would be extremely important for further evolution of the theory. In this study, we perform such theoretical analysis based on the three-level Λ scheme of the atom. We investigate two regimes, viz., the regime of a low-intensity standing wave with close intensities of counterpropagating beams (I1 ≈ I2) and the regime of a probe wave, in which one of the beams has a noticeably lower intensity than that of the oppositely propagating beam (I2 ≪ I1). The resulting analytic expressions make it possible to determine qualitative differences between these regimes and to separate explicitly the contributions from different nonlinear effects to the light field absorption, including the terms responsible for the formation of a high-contrast sub-Doppler peak. The expressions derived here are in qualitative agreement with experimental data obtained earlier.
UR - http://www.scopus.com/inward/record.url?scp=85123490123&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/9aa15125-ba58-3e09-87cb-c7ef7148e5f0/
U2 - 10.1134/S106377612112013X
DO - 10.1134/S106377612112013X
M3 - Article
AN - SCOPUS:85123490123
VL - 133
SP - 696
EP - 710
JO - Journal of Experimental and Theoretical Physics
JF - Journal of Experimental and Theoretical Physics
SN - 1063-7761
IS - 6
ER -
ID: 35387041