Cs 728 nm Laser Spectroscopy and Faraday Atomic Filter
LIU Zhong-Zheng1 , TAO Zhi-Ming1,2 , JIANG Zhao-Jie1 , CHEN Jing-Biao1**
1 State Key Laboratory of Advanced Optical Communication System and Network, Institute of Quantum Electronics, School of Electronics Engineering & Computer Science, Peking University, Beijing 1008712 College of Science, Guizhou University of Engineering Science, Bijie 551700
Abstract ：We mainly present the 728 nm laser spectroscopy and Faraday atomic filter of Cs atoms with 650 MHz linewidth and 2.6% transmission based on an electrodeless discharge vapor lamp, compared with Rb 728 nm laser spectroscopy. Accidentally, this remarkably strong Cs 728 nm transition from the 6F7/2 state to the 5D5/2 state is only about 2.5 GHz away from the Rb 728 nm transition of the future potential four-level active optical clock, once laser cooled and trapped from the 7S1/2 state to the 5P1/2 state, as we proposed previously. A Faraday atomic filter stabilized 728 nm laser using a Cs electrodeless discharge vapor lamp with a power of 10 mW will provide a frequency reference to evaluate the performance of the potential Rb four-level active optical clock at 728 nm with power less than 1 nW by 2.5 GHz heterodyne measurements.
出版日期: 2015-01-12
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2014, Vol. 31 
