Three-dimensional imaging of spin polarization of alkali-metal vapor in optical pumping cells
作者:
A. R. Young,
S. Appelt,
A. Ben-Amar Baranga,
C. Erickson,
W. Happer,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 70,
issue 23
页码: 3081-3083
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.119097
出版商: AIP
数据来源: AIP
摘要:
We present detailed images of the Rb polarization in a high-pressure optical pumping cell. Images taken at high magnetic field strengths (≈37 G) yield precise information on the relative occupation probability of the hyperfine Zeeman sublevels. Low-field (⩽4 G) images yield very high resolution (less than 1 mm) maps of the spatial distribution of the Rb polarization. For optical pumping in the presence of high-pressure buffer gases, the measured populations of the hyperfine magnetic sublevels are shown to be well described by a spin temperature, even though the Rb–Rb spin exchange rate is much smaller than the rates of optical pumping or electron-randomizing Rb–Xe collisions in the buffer gas. ©1997 American Institute of Physics.
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