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This article reports a distributed feedback (DFB) laser-pumped cesium atomic experimental magnetometer, showing how the sensitivity is influenced by the following 5 kinds of parameters: laser light intensity, laser frequency, radiofrequency intensity, temperature of cesium absorption cell, and the pressure of the buffer gas in the cell. Results of the experiments show that each of the five parameters has some influence on the sensitivity of the magnetometer, especially the laser frequency, radiofrequency intensity, and temperature of cesium absorption cell, which can even improve the sensitivity by 10 times. Recently we have obtained a sensitivity of 2.5 pT/Hz1/2.
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Keywords:
- magnetometer /
- cesium /
- distributed feedback laser /
- temperature
[1] Dong H B, Zhang Ch D 2010 Chinese Journal of Engineering Geophysics 7 460 (in Chinese) [董浩斌, 张昌达 2010 工程地球 7 460]
[2] Bison G, Wynands R, Weis A 2003 Physics B 76 325
[3] Groeger S, Bison G, Knowles P E, Wynands R, Weis A 2006 Sensors & Actuators: A. Physical 29 1
[4] Kuroda M, Yamanaka S 2005 NDT m& E International 38 53
[5] Zhang Ch D, Dong H B 2010 Chinese Journal of Engineering Geophysics 1 499 (in Chinese) [张昌达, 董浩斌 2010 工程地球 1 499]
[6] Zhang Y, Kang Ch, Sun W M, Wang Q T, Zheng C P 2010 Optics & Optoelectronic Technology 2 54 (in Chinese) [张杨, 康崇, 孙伟民, 王庆涛, 郑彩萍 2010 光学与光电技术 2 54]
[7] Liu Q, Li J X, Huang L M, Zhang J H, Sun W M 2012 Optical Technique 38 259 (in Chinese)[刘强, 李九兴, 黄立明, 张军海, 孙伟民 2012 光学技术 38 259]
[8] Li Q M, Zhang J H, Zeng X J, Huang Q, Sun W M 2013 Laser m& Optoelectronics Progress 50 137 (in Chinese) [李庆萌, 张军海, 曾宪金, 黄强, 孙伟民 2013 激光与光电子学进展 50 137]
[9] Long C, Dong H B, Tan Ch 2012 Instrument Technique and Sensor 7 29 (in Chinese) [龙财, 董浩斌, 谭超 2012 仪表技术与传感器 7 29]
[10] Shi R Y, Wang Y H 2013 Chin. Phys. B 22 100703
[11] Li N, Huang K K, Lu X H 2013 Acta Phys. Sin. 62 133201 (in Chinese)[李楠, 黄凯凯, 陆璇辉 2013 62 133201]
[12] F. Bloch 1946 Phys. Rev. 70 460
[13] Huang K K, Li N, Lu X H 2012 Chin. Phys. Lett. 29 100701
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[1] Dong H B, Zhang Ch D 2010 Chinese Journal of Engineering Geophysics 7 460 (in Chinese) [董浩斌, 张昌达 2010 工程地球 7 460]
[2] Bison G, Wynands R, Weis A 2003 Physics B 76 325
[3] Groeger S, Bison G, Knowles P E, Wynands R, Weis A 2006 Sensors & Actuators: A. Physical 29 1
[4] Kuroda M, Yamanaka S 2005 NDT m& E International 38 53
[5] Zhang Ch D, Dong H B 2010 Chinese Journal of Engineering Geophysics 1 499 (in Chinese) [张昌达, 董浩斌 2010 工程地球 1 499]
[6] Zhang Y, Kang Ch, Sun W M, Wang Q T, Zheng C P 2010 Optics & Optoelectronic Technology 2 54 (in Chinese) [张杨, 康崇, 孙伟民, 王庆涛, 郑彩萍 2010 光学与光电技术 2 54]
[7] Liu Q, Li J X, Huang L M, Zhang J H, Sun W M 2012 Optical Technique 38 259 (in Chinese)[刘强, 李九兴, 黄立明, 张军海, 孙伟民 2012 光学技术 38 259]
[8] Li Q M, Zhang J H, Zeng X J, Huang Q, Sun W M 2013 Laser m& Optoelectronics Progress 50 137 (in Chinese) [李庆萌, 张军海, 曾宪金, 黄强, 孙伟民 2013 激光与光电子学进展 50 137]
[9] Long C, Dong H B, Tan Ch 2012 Instrument Technique and Sensor 7 29 (in Chinese) [龙财, 董浩斌, 谭超 2012 仪表技术与传感器 7 29]
[10] Shi R Y, Wang Y H 2013 Chin. Phys. B 22 100703
[11] Li N, Huang K K, Lu X H 2013 Acta Phys. Sin. 62 133201 (in Chinese)[李楠, 黄凯凯, 陆璇辉 2013 62 133201]
[12] F. Bloch 1946 Phys. Rev. 70 460
[13] Huang K K, Li N, Lu X H 2012 Chin. Phys. Lett. 29 100701
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