Candidate ions for active optical clock and narrow-linewidth Ion laser

【作者】 庄伟； 陈景标；

【Author】 Wei ZHUANG , Jingbiao CHEN ** Institute of Quantum Electronics and State Key Laboratory of Advanced Optical Communication System & Network, School of Electronics Engineering & Computer Science, Peking University, Beijing 100871, People’s Republic of China

【机构】 Institute of Quantum Electronics and State Key Laboratory of Advanced Optical Communication System & Network, School of Electronics Engineering & Computer Science, Peking University；

【摘要】 <正>Since the proposal of active optical clock[1,2], a number of neutral atoms with two-level, three-level, and four-level at thermal, laser cooled and trapped configurations have been investigated recently[1-11]. The potential quantum limited linewidth of the active optical clock is narrower than mHz, and to reach this unprecedented linewidth is possible since the thermal noise of cavity mode can更多还原