Observation of Faraday Rotation in Cold Atoms in an Integrating Sphere

The Faraday rotation of weak linearly polarized probe light is observed as it passes through a sample of cold ^87Rb atoms prepared by diffused light in an integrating sphere. The rotation angle of the probe light-polarization as functions of laser intensity, detuning and biased magnetic field is mea...

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Published inChinese physics letters Vol. 31; no. 7; pp. 81 - 84
Main Author 郑本昌 成华东 孟艳玲 肖玲 万金银 刘亮
Format Journal Article
LanguageEnglish
Published 01.07.2014
Subjects
Clocks
Cold atoms
Diffusion
Integrating spheres
Lasers
Performance enhancement
Titanium dioxide
光偏振
冷原子
原子量
法拉第旋转
漫射光
激光强度
积分球
线偏振
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Summary:The Faraday rotation of weak linearly polarized probe light is observed as it passes through a sample of cold ^87Rb atoms prepared by diffused light in an integrating sphere. The rotation angle of the probe light-polarization as functions of laser intensity, detuning and biased magnetic field is measured. A Ramsey fringe with a linewidth of 35 Hz and contrast up to 92% is demonstrated. This method has potential applications in improving the performance of atomic clocks with cold atoms.
Bibliography:The Faraday rotation of weak linearly polarized probe light is observed as it passes through a sample of cold ^87Rb atoms prepared by diffused light in an integrating sphere. The rotation angle of the probe light-polarization as functions of laser intensity, detuning and biased magnetic field is measured. A Ramsey fringe with a linewidth of 35 Hz and contrast up to 92% is demonstrated. This method has potential applications in improving the performance of atomic clocks with cold atoms.
11-1959/O4
ZHENG Ben-Chang, CHENG Hua-Dong., MENG Yan-Ling, XIAO Ling, WAN Jin-Yin, LIU Liang（ 1Key Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201899 ;2 Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences, Wuhan 430071）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/7/073701