Cesium alignment produced by pumping with unpolarized light

We demonstrate optical pumping on the four hyperfine components of the Cs D 1 transition by unpolarized (UPL) resonant laser light. The evidence is based on the reduction of the absorption coefficients κ 0 with increasing light power P in an uncoated Cs vapor cell with isotropic spin relaxation. For...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2018-04, Vol.72 (4), p.1-7, Article 73
Main Authors: Shi, Yongqi, Weis, Antoine
Format: Article
Language:English
Subjects:
Absorptivity
Alignment
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Cesium
Light
Molecular
Optical and Plasma Physics
Optical pumping
Physical Chemistry
Physics
Physics and Astronomy
Polarized light
Quantum Information Technology
Quantum Physics
Regular Article
Spectroscopy/Spectrometry
Spintronics
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Summary:We demonstrate optical pumping on the four hyperfine components of the Cs D 1 transition by unpolarized (UPL) resonant laser light. The evidence is based on the reduction of the absorption coefficients κ 0 with increasing light power P in an uncoated Cs vapor cell with isotropic spin relaxation. For comparison we perform the same quantitative κ 0 ( P ) measurements with linearly-polarized light (LPL) and circularly-polarized light (CPL). We find that our previously published algebraic expressions give an excellent description of all experimentally recorded induced transparency signals. Based on this we can make reliable absolute predictions for the power dependence of the spin orientation and alignment produced by pumping with LPL, CPL and UPL. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2018-90107-x