NDLI: Measurement of Spatial Distribution of Cold Atoms in an Integrating Sphere

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Measurement of Spatial Distribution of Cold Atoms in an Integrating Sphere

Content Provider	Scilit
Author	Wang, Xu-Cheng Cheng, Hua-Dong Xiao, Ling Zheng, Ben-Chang Meng, Yan-Ling Liu, Liang Wang, Yu-Zhu
Copyright Year	2012
Description	Journal: Chinese Physics Letters We present an experiment on the measurement of the spatial distribution of cold atoms in a ceramic cell. The atoms are first cooled by diffusing light produced by multiple scattering of laser light at the inner surface of the cell. An in homogeneous magnetic field is applied after the atoms are cooled by using a pair of anti-Helmholtz coils, and thus the shift of atomic magnetic sub-levels is position-dependent. We move the anti-Helmholtz coils point by point while keeping the probe laser beam resonant with the cold atoms at zero magnetic field. The number of cold atoms at different positions can be extracted by detecting the absorption to the probe beam. The density of the cold atoms in the cell is measured in two dimensions perpendicular and parallel to the tube connecting to the vacuum system, respectively. The results show that at the center of the cell, fewer atoms exist due to the leakage of diffuse light into the hole connecting to the vacuum pump. The method we developed is used to detect cold atoms in a region where imaging is impossible.
Related Links	http://arxiv.org/pdf/1003.1432 http://iopscience.iop.org/article/10.1088/0256-307X/29/2/023701/pdf
ISSN	0256307X
e-ISSN	17413540
DOI	10.1088/0256-307x/29/2/023701
Journal	Chinese Physics Letters
Issue Number	2
Volume Number	29
Language	English
Publisher	IOP Publishing
Publisher Date	2012-02-01
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics Letters Quantum Science and Technology Cold Atoms Diffusing Light
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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