scholarly journals Measurement Sensitivity Improvement of All-Optical Atomic Spin Magnetometer by Suppressing Noises

Sensors ◽  
2016 ◽  
Vol 16 (6) ◽  
pp. 896 ◽  
Author(s):  
Xiyuan Chen ◽  
Hong Zhang ◽  
Sheng Zou
Keyword(s):  
Measurement Sensitivity ◽  
Atomic Spin ◽  
All Optical ◽  
Sensitivity Improvement

scholarly journals Parameter Modeling Analysis and Experimental Verification on Magnetic Shielding Cylinder of All-Optical Atomic Spin Magnetometer

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Hong Zhang ◽  
Sheng Zou ◽  
Xi-Yuan Chen ◽  
Wei Quan
Keyword(s):  
Magnetic Measurement ◽  
Magnetic Shielding ◽  
Key Factors ◽  
Actual Measurement ◽  
Atomic Spin ◽  
Modeling Analysis ◽  
Measurement Results ◽  
All Optical ◽  
Ultrahigh Sensitivity ◽  
Shielding Effects

The ultrahigh sensitivity atomic spin magnetometer as the magnetic measurement sensor has received much concern. The performance of the magnetic shielding cylinder is one of the key factors constraining the atomic spin magnetometer’s sensitivity. In order to effectively improve the performances of the magnetic shielding, the parameter optimization models of the magnetic shielding cylinder were established in this paper. Under the condition of changing only one parameter while the others keeping constant, the effects of various parameters influencing the axial shielding coefficient were comprehensively analyzed, and the results showed that the smaller the innermost length, the innermost radius, and the radial spacing were, and the greater the axial spacing was, the better the shielding performance could be obtained. According to these results and the actual needs, the magnetic shielding cylinder was optimally designed, and then the shielding effects were simulated via the software Ansoft. The simulation results showed that the optimized magnetic shielding cylinder had the advantages of small size, high shielding performance, and lager uniformity than that of the nonoptimized one. The actual measurement results showed that the residual magnetism in the optimized magnetic shielding cylinder was below 0.1 nT, which was 2~4 times lower than the nonoptimized one.

An atomic spin precession detection method based on electro-optic modulation in an all-optical K–Rb hybrid atomic magnetometer

2017 ◽  
Vol 50 (26) ◽  
pp. 265001 ◽  
Author(s):  
Yanhui Hu ◽  
Xuejing Liu ◽  
Yang Li ◽  
Han Yao ◽  
Lingling Dai ◽  
...  
Keyword(s):  
Detection Method ◽  
Spin Precession ◽  
Atomic Spin ◽  
Electro Optic ◽  
All Optical

Dynamics of an all-optical atomic spin gyroscope

2013 ◽  
Vol 52 (30) ◽  
pp. 7220 ◽  
Author(s):  
Jiancheng Fang ◽  
Shuangai Wan ◽  
Heng Yuan
Keyword(s):  
Atomic Spin ◽  
All Optical

Sensitivity improvement of optical fiber acoustic probe for all-optical photoacoustic imaging system

2017 ◽  
Vol 10 (7) ◽  
pp. 072503 ◽  
Author(s):  
Atsushi Seki ◽  
Katsumasa Iwai ◽  
Takashi Katagiri ◽  
Yuji Matsuura
Keyword(s):  
Optical Fiber ◽  
Imaging System ◽  
Photoacoustic Imaging ◽  
All Optical ◽  
Sensitivity Improvement
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