High contrast atomic magnetometer based on coherent population trapping

doi:10.1088/1674-1056/23/2/027601

中国物理B ›› 2014, Vol. 23 ›› Issue (2): 27601-027601.doi: 10.1088/1674-1056/23/2/027601

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

High contrast atomic magnetometer based on coherent population trapping

杨爱林, 杨国卿, 徐云飞, 林强

Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027, China

收稿日期:2012-12-28 修回日期:2013-09-28 出版日期:2013-12-12 发布日期:2013-12-12
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2013CB329501), the National Natural Science Foundation of China (Grant Nos. 60925022 and 11125863), and the Fundamental Research Funds for the Central Universities (Grant No. 2012FZA3001).

High contrast atomic magnetometer based on coherent population trapping

Yang Ai-Lin (杨爱林), Yang Guo-Qing (杨国卿), Xu Yun-Fei (徐云飞), Lin Qiang (林强)

Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027, China

Received:2012-12-28 Revised:2013-09-28 Online:2013-12-12 Published:2013-12-12
Contact: Lin Qiang E-mail:qlin@zju.edu.cn
About author:76.70.Hb; 42.62.Eh; 42.50.Gy; 32.10.Dk
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2013CB329501), the National Natural Science Foundation of China (Grant Nos. 60925022 and 11125863), and the Fundamental Research Funds for the Central Universities (Grant No. 2012FZA3001).

摘要/Abstract

摘要： We present an experimental and theoretical investigation of the coherent population trapping (CPT) resonance excited on the D1 line of ⁸⁷Rb atoms by bichromatic linearly polarized laser light. The experimental results show that a lin‖lin transition scheme is a promising alternative to the conventional circular–circular transition scheme for an atomic magnetometer. Compared with the circular light transition scheme, linear light accounts for high-contrast transmission resonances, which makes this excitation scheme promising for high-sensitivity magnetometers. We also use linear light and circular light to detect changes of a standard magnetic field, separately.

关键词: high contrast atomic magnetometer, coherent population trapping

Abstract: We present an experimental and theoretical investigation of the coherent population trapping (CPT) resonance excited on the D1 line of ⁸⁷Rb atoms by bichromatic linearly polarized laser light. The experimental results show that a lin‖lin transition scheme is a promising alternative to the conventional circular–circular transition scheme for an atomic magnetometer. Compared with the circular light transition scheme, linear light accounts for high-contrast transmission resonances, which makes this excitation scheme promising for high-sensitivity magnetometers. We also use linear light and circular light to detect changes of a standard magnetic field, separately.

Key words: high contrast atomic magnetometer, coherent population trapping

中图分类号: (Optically detected magnetic resonance (ODMR))

76.70.Hb

42.62.Eh (Metrological applications; optical frequency synthesizers for precision spectroscopy) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption) 32.10.Dk (Electric and magnetic moments, polarizabilities)

杨爱林, 杨国卿, 徐云飞, 林强. High contrast atomic magnetometer based on coherent population trapping[J]. 中国物理B, 2014, 23(2): 27601-027601.

Yang Ai-Lin (杨爱林), Yang Guo-Qing (杨国卿), Xu Yun-Fei (徐云飞), Lin Qiang (林强). High contrast atomic magnetometer based on coherent population trapping[J]. Chin. Phys. B, 2014, 23(2): 27601-027601.

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High contrast atomic magnetometer based on coherent population trapping

High contrast atomic magnetometer based on coherent population trapping

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