The Effect of an Antirelaxation Coating on Absorption in the D 2 Lines of Alkali Metals

The specific features of absorption in a cell with an antirelaxation coating related to optical pumping and a finite rate of laser-frequency scanning are studied. The internal state of an atom in such cells is likely to remain unaltered after a collision with a wall. This results in optical pumping...

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Bibliographic Details
Published inOptics and spectroscopy Vol. 124; no. 2; pp. 143 - 150
Main Authors Zibrov, S A, Tsygankov, E A, Chuchelov, D S, D. I. Sevost’yanov, Vasiliev, V V, Velichansky, V L, Yakovlev, V P
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.02.2018
Subjects
Absorption
Alkali metals
Cesium 133
Cesium isotopes
Coating effects
Frequency scanning
Optical pumping
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Summary:The specific features of absorption in a cell with an antirelaxation coating related to optical pumping and a finite rate of laser-frequency scanning are studied. The internal state of an atom in such cells is likely to remain unaltered after a collision with a wall. This results in optical pumping of an atomic ensemble over all velocities and the entire cell volume. Both the frequency corresponding to the maximum absorption in the D2 line of 133Cs and the absorption maximum itself depend on the sign of laser-frequency scanning. A theoretical model attributing the power dependence of asymmetry of the absorption contour of the 133Cs D2 line to the presence of cyclic transition levels in the system is presented.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X18020224