JP2018074026A - 超伝導単一光子検出器 - Google Patents
超伝導単一光子検出器 Download PDFInfo
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- JP2018074026A JP2018074026A JP2016212995A JP2016212995A JP2018074026A JP 2018074026 A JP2018074026 A JP 2018074026A JP 2016212995 A JP2016212995 A JP 2016212995A JP 2016212995 A JP2016212995 A JP 2016212995A JP 2018074026 A JP2018074026 A JP 2018074026A
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Abstract
Description
A 受光面領域
L1(i)(i=1,2,…,n) 第1配線成分
L2(i) 第2配線成分
L11 並列配線部
L12 端部合流部
L13 線間合流部
Px(x=1,2,…,N) 並列ユニット
Qy(y=1,2,…,M) 直列ユニット
Claims (4)
- 所定の受光面領域に配設される受光配線を備え、前記受光配線を超伝導状態とし、所定のバイアス電流経路から当該受光配線にバイアス電流を流すことで、前記受光面領域に入射される単一光子を検出する超伝導単一光子検出器であって、
前記受光配線は、
前記受光面領域内における所定の第1方向に延びる複数の第1配線成分と、
それぞれの一端部が一の前記第1配線成分の第1端部に接続され、それぞれの他端部が他の前記第1配線成分の第2端部に接続される複数の第2配線成分と、を備え、
前記第1配線成分と前記第2配線成分とが交互に直列接続された状態で、前記複数の第1配線成分が前記第1方向に直交する第2方向に並ぶように配設され、
前記複数の第1配線成分は、それぞれ、
前記第1端部と前記第2端部との間に延びる2以上の所定数の並列配線部と、
前記第1端部および前記第2端部のそれぞれにおいて前記所定数の並列配線部が合流する端部合流部と、
前記第1端部と前記第2端部との間の所定箇所において前記所定数の並列配線部同士を接続する少なくとも1つの線間合流部と、を備えている、超伝導単一光子検出器。 - 前記線間合流部は、各並列配線部を前記第1方向に均等に区分するように設けられる、請求項1に記載の超伝導単一光子検出器。
- 前記線間合流部の前記第1方向の幅は、各並列配線部の前記第2方向の幅より大きい、請求項1または2に記載の超伝導単一光子検出器。
- 前記受光配線は、
それぞれが、J個(J≧2)の前記並列配線部を有するK個(K≧2)の前記第1配線成分を有する直列ユニットがM個(M≧2)並列接続されたN個(N≧2)の並列ユニットを有し、
前記N個の並列ユニットに含まれる前記第1配線成分が前記第2方向に並ぶように配置された状態で、前記N個の並列ユニットが直列接続されている、請求項1から3の何れかに記載の超伝導単一光子検出器。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020179554A1 (ja) * | 2019-03-01 | 2020-09-10 | 国立大学法人横浜国立大学 | 光子検出装置 |
WO2021216162A3 (en) * | 2020-02-03 | 2022-01-06 | Applied Materials, Inc. | Snspd with integrated aluminum nitride seed or waveguide layer |
US11653576B2 (en) | 2020-02-03 | 2023-05-16 | Applied Materials, Inc. | SNSPD with integrated aluminum nitride seed or waveguide layer |
WO2023171057A1 (ja) * | 2022-03-09 | 2023-09-14 | 浜松ホトニクス株式会社 | エネルギー線検出システム |
Citations (5)
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JP2008071908A (ja) * | 2006-09-13 | 2008-03-27 | Nippon Telegr & Teleph Corp <Ntt> | 超伝導光検出素子 |
JP2009038190A (ja) * | 2007-08-01 | 2009-02-19 | National Institute Of Information & Communication Technology | 超伝導単一光子検出素子および超伝導単一光子検出素子の製造方法 |
US20130172195A1 (en) * | 2011-10-06 | 2013-07-04 | Massachusetts Institute Of Technology | Optical detectors and associated systems and methods |
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JP2008071908A (ja) * | 2006-09-13 | 2008-03-27 | Nippon Telegr & Teleph Corp <Ntt> | 超伝導光検出素子 |
JP2009038190A (ja) * | 2007-08-01 | 2009-02-19 | National Institute Of Information & Communication Technology | 超伝導単一光子検出素子および超伝導単一光子検出素子の製造方法 |
US20130172195A1 (en) * | 2011-10-06 | 2013-07-04 | Massachusetts Institute Of Technology | Optical detectors and associated systems and methods |
JP2014216430A (ja) * | 2013-04-24 | 2014-11-17 | 独立行政法人情報通信研究機構 | 超伝導単一光子検出器およびその受光配線の構造決定方法 |
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FARAZ NAJAFI ET AL.: "Fabrication Process Yielding Saturated Nanowire Single-Photon Detectors With 24-ps Jitter", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 21, no. 2, JPN6019052064, March 2015 (2015-03-01), pages 1 - 7, XP011569058, ISSN: 0004187848, DOI: 10.1109/JSTQE.2014.2372054 * |
R. CRISTIANO ET AL.: "Superconducting single photon detectors based on multiple cascade switches of parallel NbN nanowires", PROCEEDINGS OF SPIE, vol. 8072, JPN7019004276, 2011, US, pages 1 - 6, XP060012620, ISSN: 0004187847, DOI: 10.1117/12.888055 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020179554A1 (ja) * | 2019-03-01 | 2020-09-10 | 国立大学法人横浜国立大学 | 光子検出装置 |
JPWO2020179554A1 (ja) * | 2019-03-01 | 2021-12-23 | 国立大学法人横浜国立大学 | 光子検出装置 |
WO2021216162A3 (en) * | 2020-02-03 | 2022-01-06 | Applied Materials, Inc. | Snspd with integrated aluminum nitride seed or waveguide layer |
US11653576B2 (en) | 2020-02-03 | 2023-05-16 | Applied Materials, Inc. | SNSPD with integrated aluminum nitride seed or waveguide layer |
US11788883B2 (en) | 2020-02-03 | 2023-10-17 | Applied Materials, Inc. | SNSPD with integrated aluminum nitride seed or waveguide layer |
WO2023171057A1 (ja) * | 2022-03-09 | 2023-09-14 | 浜松ホトニクス株式会社 | エネルギー線検出システム |
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