Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Optically driven spin-alignment precession. / Фомин, Алексей Андреевич; Петров, Михаил Юрьевич; Pazgalev, A.S.; Козлов, Глеб Геннадьевич; Запасский, Валерий Сергеевич.
в: Physical Review A, Том 108, № 4, 043109 , 16.10.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Optically driven spin-alignment precession
AU - Фомин, Алексей Андреевич
AU - Петров, Михаил Юрьевич
AU - Pazgalev, A.S.
AU - Козлов, Глеб Геннадьевич
AU - Запасский, Валерий Сергеевич
PY - 2023/10/16
Y1 - 2023/10/16
N2 - The effect of optically driven spin precession discovered by Bell and Bloom [W. E. Bell and A. L. Bloom, Phys. Rev. Lett. 6, 280 (1961)0031-900710.1103/PhysRevLett.6.280] is widely used nowadays as a basis for numerous experiments in fundamental physics and for diverse applications. In this paper we consider a much less popular version of the light-induced spin precession that does not imply coherent precession of the spin-system magnetization and is excited by linearly (rather than circularly) polarized light. Pump-probe measurements performed on the D2 line of cesium vapor show that the magnitude of the signal of the optically driven spin-alignment precession, in "vacuum"cells (with no buffer gas) is close to that of classical spin-orientation precession. In the presence of buffer gas, however, the signal of spin-alignment precession appears to be strongly suppressed. The discovered effect is ascribed to spin mixing of excited states of cesium atoms in the cycle of optical pumping.
AB - The effect of optically driven spin precession discovered by Bell and Bloom [W. E. Bell and A. L. Bloom, Phys. Rev. Lett. 6, 280 (1961)0031-900710.1103/PhysRevLett.6.280] is widely used nowadays as a basis for numerous experiments in fundamental physics and for diverse applications. In this paper we consider a much less popular version of the light-induced spin precession that does not imply coherent precession of the spin-system magnetization and is excited by linearly (rather than circularly) polarized light. Pump-probe measurements performed on the D2 line of cesium vapor show that the magnitude of the signal of the optically driven spin-alignment precession, in "vacuum"cells (with no buffer gas) is close to that of classical spin-orientation precession. In the presence of buffer gas, however, the signal of spin-alignment precession appears to be strongly suppressed. The discovered effect is ascribed to spin mixing of excited states of cesium atoms in the cycle of optical pumping.
UR - https://www.mendeley.com/catalogue/a515140d-fc30-3c88-8ac4-e2600b79034a/
U2 - 10.1103/PhysRevA.108.043109
DO - 10.1103/PhysRevA.108.043109
M3 - Article
VL - 108
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 4
M1 - 043109
ER -
ID: 111819628