Decoupling of hyperfine structure of Cs D1 line in strong magnetic field studied by selective reflection from a nanocell; Journal of the Optical Society of America B; Vol. 34, iss. 4

Decoupling of hyperfine structure of Cs D1 line in strong magnetic field studied by selective reflection from a nanocell; Journal of the Optical Society of America B; Vol. 34, iss. 4

Detalles Bibliográficos
Parent link:Journal of the Optical Society of America B.— .— Washington: Optical Society of America
Vol. 34, iss. 4.— 2017.— P. 776-784
Outros autores: Sargsyan A. D. Armen, Klinger E. Emmanuel, Hakhumyan G. T. Grant, Tonoyan A. Ara, Papoyan A. Aram, Leroy K. A. Klod (Claude) Andre, Sarkisyan D. H. David
Summary:Title screen
Decoupling of total electronic and nuclear spin moments of Cs atoms in an external magnetic field for the case of atomic ??1D1 line, leading to onset of the hyperfine Paschen–Back (HPB) regime, is studied theoretically and experimentally. Selective reflection (SR) of laser radiation from an interface of dielectric window and atomic vapor confined in a nanocell with 300 nm gap thickness is implemented for the experimental studies. The real-time derivative of SR signal with a frequency position coinciding with atomic transitions is used in the measurements, providing ~40??MHz~40??MHz spectral resolution and linearity of the signal response with respect to the transition probability. The behavior of 28 individual Zeeman transitions in a wide range of longitudinal magnetic field (0–6 kG) is tracked under the excitation of Cs vapor by a low-intensity ??+s+-polarized cw laser radiation. For ??=6??kGB=6??kG, only eight transitions with nearly equal probabilities and the same frequency slope remain in the spectrum, which is a manifestation of the HPB regime. The obtained experimental results are in very good agreement with the numerical modeling. A small divergence of the SR signal as well as subwavelength thickness and sub-Doppler spectral linewidth inherent to nanocell make it possible for the employed technique to be used for distant remote sensing of a magnetic field with high spatial and ??B-field resolution
Текстовый файл
AM_Agreement
Idioma:inglés
Publicado: 2017
Subjects:
электронный ресурс
труды учёных ТПУ
ядерные атомы
магнитные поля
лазерное излучение
дистанционное зондирование
экспериментальные исследования
Acceso en liña:https://doi.org/10.1364/JOSAB.34.000776
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655540

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