All-Optical Cesium Atomic Magnetometer with High Sensitivity

doi:10.1088/0256-307X/29/6/068501

Chin. Phys. Lett.

2012, Vol. 29

Issue (6): 068501 DOI: 10.1088/0256-307X/29/6/068501

CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY

All-Optical Cesium Atomic Magnetometer with High Sensitivity

ZHANG Jun-Hai^1**, LIU Qiang^1,2, ZENG Xian-Jin¹, LI Jiu-Xing¹, SUN Wei-Min¹

¹Science School, Harbin Engineering University, Harbin 150001
²Colleges of Electronic Science, Northeast Petroleum University, Daqing 163318

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ZHANG Jun-Hai, LIU Qiang, ZENG Xian-Jin et al 2012 Chin. Phys. Lett. 29 068501

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Abstract An all-optical cesium magnetometer with high sensitivity based on absorptive detection is reported. The experiment achieves a polarized rotational spectrum of the probe light which is induced by circular dichroism and a quarter wave plate together. The frequency response of the rotational spectrum is 1.8 mrad/Hz at Larmor precession resonance. Analyzing the signal-to-noise ratio from the experimentally observed spectrum, we predict that the magnetic measurement sensitivity of 0.3 pT/Hz^1/2 would be obtained in the responsive range from 20 nT to 2000 nT.

Received: 25 October 2011 Published: 31 May 2012

PACS:	85.70.Sq	(Magnetooptical devices)
	42.62.Fi	(Laser spectroscopy)
	33.55.+b	(Optical activity and dichroism)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/6/068501 OR https://cpl.iphy.ac.cn/Y2012/V29/I6/068501

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	ZHANG Jun-Hai
	LIU Qiang
	ZENG Xian-Jin
	LI Jiu-Xing
	SUN Wei-Min

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