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| Presentation | 2011-10-12 13:00 Origin of dark count in superconducting nanowire single-photon detectors Taro Yamashita, Shigehito Miki, Kazumasa Makise, Wei Qiu, Hirotaka Terai, Mikio Fujiwara, Masahide Sasaki, Zhen Wang (NICT)  SCE2011-12 Link to ES Tech. Rep. Archives: SCE2011-12 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We investigated a physical mechanism of the dark count in superconducting nanowire single-photon detectors. The direct-current characteristics and bias-current dependencies of the dark count rate in a wide range of temperatures from 0.5 K to 4 K were measured. As a candidate for the origin of the dark count, we examined two possible mechanisms: (i) the current-assisted unbinding of vortex-antivortex pairs induced by the Berezinskii-Kosterlitz-Thouless transition and (ii) the vortex hopping overcoming the edge barrier of the nanowire. Our results indicate that the unbinding of vortex-antivortex pairs is the dominant origin of the dark count. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | single-photon detector / superconducting thin film / fluctuation / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 230, SCE2011-12, pp. 1-6, Oct. 2011. | |
| Paper # | SCE2011-12 | |
| Date of Issue | 2011-10-05 (SCE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SCE2011-12 Link to ES Tech. Rep. Archives: SCE2011-12 |
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| Conference Information | |
| Committee | SCE |
| Conference Date | 2011-10-12 - 2011-10-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Fundamental Technologies for Superconducting Electronics, etc. |
| Paper Information | |
| Registration To | SCE |
| Conference Code | 2011-10-SCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Origin of dark count in superconducting nanowire single-photon detectors |
| Sub Title (in English) | |
| Keyword(1) | single-photon detector |
| Keyword(2) | superconducting thin film |
| Keyword(3) | fluctuation |
| Keyword(4) | |
| Keyword(5) | |
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| 1st Author's Name | Taro Yamashita |
| 1st Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 2nd Author's Name | Shigehito Miki |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Kazumasa Makise |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 4th Author's Name | Wei Qiu |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 5th Author's Name | Hirotaka Terai |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Mikio Fujiwara |
| 6th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 7th Author's Name | Masahide Sasaki |
| 7th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 8th Author's Name | Zhen Wang |
| 8th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2011-10-12 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | SCE |
| Paper # | SCE2011-12 |
| Volume (vol) | vol.111 |
| Number (no) | no.230 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2011-10-05 (SCE) |
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