System and method for testing spatial distribution uniformity of alkali metal atom number density of atom magnetometer

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United States of America Patent

PATENT NO 11867778
APP PUB NO 20230092597A1
SERIAL NO

17889802

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Abstract

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The present disclosure discloses a system and method for testing the spatial distribution uniformity of an alkali metal atom number density of an atom magnetometer. The system includes a detection laser, a laser beam expanding system, a polarizing element, a magnetic shielding system, an alkali metal atom gas chamber, a beam profile camera, a beam splitting prism, etc., which are sequentially arranged in a light advancing direction. In the method, based on an optical absorption principle, light intensity attenuations of linearly polarized light before and after passing through the alkali metal gas chamber are tested by using the beam profile camera with pixels in the level of um, a two-dimensional distribution matrix of an atom number density in space is calculated, and the distribution uniformity of the atom number density is analyzed by using a discrete coefficient.

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Patent Owner(s)

  • ZHEJIANG LAB

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Qiang Hangzhou, CN 98 198
Li, Ziwen Hangzhou, CN 2 0
Wang, Zixuan Hangzhou, CN 22 55
Yu, Tingting Hangzhou, CN 39 86
Zhang, Mengshi Hangzhou, CN 3 0
Zhang, Ning Hangzhou, CN 491 4275

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