Ultra-Low Mean-Photon-Number Measurement with Balanced Optical Heterodyne Detection
LI Gang, LI Li-Ping, DU Zhi-Jing, LIU Tao, ZHANG Tian-Cai, WANG Jun-Min
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006
Ultra-Low Mean-Photon-Number Measurement with Balanced Optical Heterodyne Detection
LI Gang;LI Li-Ping;DU Zhi-Jing;LIU Tao;ZHANG Tian-Cai;WANG Jun-Min
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006
关键词 ：
42.79.-e
Abstract ： Determination of an ultra-low mean photon number is an important issue, either for precise optical measurement or understanding the interaction between individual atoms and photons inside an optical cavity. By utilizing a homemade balanced optical heterodyne detection system, the cw minimum measurable power of 3.6 fW has been reached, whereas the minimum mean photon number of = 0.0014 in our micro-cavity with finesse of 2 x 105 and optical length of 48 μm can be realized.
Key words ：
42.79.-e
出版日期: 2004-04-01
:
42.79.-e
(Optical elements, devices, and systems)
引用本文:
LI Gang;LI Li-Ping;DU Zhi-Jing;LIU Tao;ZHANG Tian-Cai;WANG Jun-Min. Ultra-Low Mean-Photon-Number Measurement with Balanced Optical Heterodyne Detection[J]. 中国物理快报, 2004, 21(4): 671-674.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I4/671
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