中国物理B ›› 2017, Vol. 26 ›› Issue (6): 64203-064203.doi: 10.1088/1674-1056/26/6/064203
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Chi Xu(徐迟), Shi-Guang Wang(王时光), Yong Hu(胡勇), Yan-Ying Feng(冯焱颖), Li-Jun Wang(王力军)
Chi Xu(徐迟)1,2, Shi-Guang Wang(王时光)2,3, Yong Hu(胡勇)2,3, Yan-Ying Feng(冯焱颖)2,3, Li-Jun Wang(王力军)1,2,3
摘要:
The coherent population trapping (CPT) phenomenon has found widespread application in quantum precision measurements. Various designs based on the narrow resonant spectrum corresponding to the linear Zeeman effect have been demonstrated to achieve high performance. In this article, the nonlinear Zeeman split of the CPT spectrum of 87Rb in the lin||lin setup is investigated. We observe re-split phenomenon for both magnetic sensitive and magnetic insensitive CPT resonant lines at a large magnetic field. The re-split in the magnetic sensitive lines raises a practical problem to magnetometers worked in the lin||lin setup while the other one shows a good potential for applications in large magnetic field. We propose a design based on the nonlinear split of the magnetic insensitive lines and test its performance. It provides a much larger measurement range compared to the linear one, offering an option for atomic magnetometers where a large dynamic range is preferred.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)