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/Hz1/2 would be obtained in the responsive range from 20 nT to 2000 nT.
ZHANG Jun-Hai, LIU Qiang, ZENG Xian-Jin, LI Jiu-Xing, SUN Wei-Min. All-Optical Cesium Atomic Magnetometer with High Sensitivity[J]. 中国物理快报, 2012, 29(6): 68501-068501.
ZHANG Jun-Hai, LIU Qiang, ZENG Xian-Jin, LI Jiu-Xing, SUN Wei-Min. All-Optical Cesium Atomic Magnetometer with High Sensitivity. Chin. Phys. Lett., 2012, 29(6): 68501-068501.
2012, Vol. 29 
