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Development of a high-quantum-efficiency single-photon counting system

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タイトル: Development of a high-quantum-efficiency single-photon counting system
著者: Takeuchi, Shigeki 著作を一覧する
Kim, Jungsang 著作を一覧する
Yamamoto, Yoshihisa 著作を一覧する
Hogue, Henry H. 著作を一覧する
発行日: 1999年 2月22日
出版者: American Institute of Physics
誌名: Applied Physics Letters
巻: 74
号: 8
開始ページ: 1063
終了ページ: 1065
出版社 DOI: 10.1063/1.123482
抄録: A high-quantum-efficiency single-photon counting system has been developed. In this system, single photons were detected by a visible light photon counter operated at 6.9 K. The visible light photon counter is a solid state device that makes use of avalanches across a shallow impurity conduction band in silicon. Threefold tight shielding and viewports that worked as infrared blocking filters were used to eliminate the dark count caused by room-temperature radiation. Corrected quantum efficiencies as high as 88.2%±5% (at 694 nm) were observed, which we believe is the highest reported value for a single-photon detector. The dark count increased as the exponential of the quantum efficiency with changing temperature or bias voltage, and was 2.0 × 104 cps at the highest quantum efficiency.
Rights: Copyright © 1999 American Institute of Physics
Relation (URI): http://www.aip.org/
資料タイプ: article
URI: http://hdl.handle.net/2115/5564
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 竹内 繁樹

 

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