Measurement of Zeeman Shift of Cesium Atoms Using an Optical Nanofiber
Chuan-Biao Zhang1,2 , Dian-Qiang Su1,2 , Zhong-Hua Ji1,2 , Yan-Ting Zhao1,2** , Lian-Tuan Xiao1,2 , Suo-Tang Jia1,2
1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 0300062 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006
Abstract ：Nanofibers have many promising applications because of their advantages of high power density and ultralow saturated light intensity. We present here a Zeeman shift of the Doppler-broadened cesium D$_2$ transition using a tapered optical nanofiber in the presence of a magnetic field. When a weak magnetic field is parallel to the propagating light in the nanofiber, the Zeeman shift rates for different circularly polarized spectra are observed. For the $\sigma^{+}$ component, the typical linear Zeeman shift rates of $F=3$ and $F=4$ ground-state cesium atoms are measured to be 3.10($\pm$0.19) MHz/G and 3.91($\pm$0.16) MHz/G. For the $\sigma^{-}$ component, the values are measured to be $-$2.81($\pm$0.25) MHz/G, and $-$0.78($\pm$0.28) MHz/G. The Zeeman shift using the tapered nanofiber can help to develop magnetometers to measure the magnetic field at the narrow local region and the dispersive signal to lock laser frequency.
收稿日期: 2018-05-17
出版日期: 2018-07-15
:
32.60.+i
(Zeeman and Stark effects)
32.10.Fn
(Fine and hyperfine structure)
81.07.-b
(Nanoscale materials and structures: fabrication and characterization)
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2018, Vol. 35 
