A High Sensitivity Laser-Pumped Cesium Magnetometer

doi:10.1088/0256-307X/29/10/100701

Chin. Phys. Lett.

2012, Vol. 29

Issue (10): 100701 DOI: 10.1088/0256-307X/29/10/100701

GENERAL

A High Sensitivity Laser-Pumped Cesium Magnetometer

HUANG Kai-Kai, LI Nan, LU Xuan-Hui^**

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

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HUANG Kai-Kai, LI Nan, LU Xuan-Hui 2012 Chin. Phys. Lett. 29 100701

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Abstract An atomic magnetometer based on optically detected magnetic resonance is investigated and demonstrated experimentally. We build an 894 nm external cavity diode laser which is frequency locked to the F=4→F'=3 transition of Cs D₁ line with DAVLL spectroscopy. With the phase-locked loop, the frequency of the rf coils is actively locked to the Larmor frequency and the magnetometer tracks the magnetic field variations in a phase coherent manner. An ultimate sensitivity of 19 fT/Hz^1/2 and an intrinsic sensitivity of 8.6 pT/Hz^1/2 in the magnetic environment which is close to geomagnetic field have been achieved with the spatial resolution smaller than 2 cm.

Received: 07 March 2012 Published: 01 October 2012

PACS:	07.55.Ge	(Magnetometers for magnetic field measurements)
	33.80.Be	(Level crossing and optical pumping)
	33.80.+i
	76.70.Hb	(Optically detected magnetic resonance (ODMR))

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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/10/100701 OR https://cpl.iphy.ac.cn/Y2012/V29/I10/100701

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	HUANG Kai-Kai
	LI Nan
	LU Xuan-Hui

[1] Bison G, Wynands R and Weis A 2003 Appl. Phys. B 76 325
[2] Gomez C et al 2007 Comput. Methods Prog. Biomed. 87 239
[3] Sternickel K and Braginski A I 2006 Supercond. Sci. Technol. 19 S160
[4] Groeger S et al 2006 Sens. Actuators A 129 1
[5] Xu S et al 2008 Phys. Rev. A 78 013404
[6] Sarma B S P, Verma B K and Satyanarayana S V 1999 Geophysics 64 1735
[7] Mende S B et al 2008 Space Sci. Rev. 141 357
[8] Russell C T et al 2008 Space Sci. Rev. 141 389
[9] Turkakin H, Marchand R and Kale Z C 2008 J. Geophys. Res. 113 A11210
[10] Carreon H 2008 Wear 265 255
[11] Zivotsky O et al 2008 J. Magn. Magn. Mater. 320 1535
[12] Bonavolonta C et al 2007 IEEE Trans. Appl. Supercond. 17 772
[13] KurodaM, Yamanaka S and Isobe Y 2005 NDT E Int. 38 53
[14] Tralshawala N, Claycomb J R and Miller J H 1997 Appl. Phys. Lett. 71 1573
[15] Kanorsky S et al 1996 Phys. Rev. A 54 R1010
[16] Corwin K L et al 1998 Appl. Opt. 37 3295
[17] Zhang X et al 2012 Chin. Phys. Lett. 29 074206
[18] Qi X H et al 2009 Chin. Phys. Lett. 26 044205
[19] Rife D C and Boorstyn R R 1974 IEEE Trans. Inf. Theory 20 591

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