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Paper Abstract and Keywords
Presentation 2014-01-24 09:55
Development of Nb/Al bi-layer MKID camera -- Temperature dependence of quality factor --
Masakazu Sekine, Yutaro Sekimoto (Univ. of Tokyo), Takashi Noguchi, Akihira Miyachi, Kenichi Karatsu (NAOJ), Tom Nitta (Univ. of Tsukuba), Shigeyuki Sekiguchi, Takashi Okada (NAOJ), Masato Naruse (Saitama Univ) SCE2013-47
Abstract (in Japanese) (See Japanese page) 
(in English) Microwave Kinetic Inductance Detector (MKID) camera has been developed at National Astronomical Observatory of Japan for millimeter-wave and terahertz astronomy. MKID composed of superconducting resonators can sense a number of quasi-particles which incident photons above the gap energy generate by breaking Cooper pairs. A bi-layer MKID such as Al/Nb is attractive because the gap energy or the threshold frequency is easily changed due to proximity effect. It is quite useful for space observatory or a remote site such as the Antarctica where power consumption of cryocoolers is severely limited. We report high quality resonators of bi-layer (Al/Nb) MKIDs fabricated by liftoff technique. And we found temperature dependence of bi -layer MKID quality factor showed different behavior as Al or Nb monolayer.
Keyword (in Japanese) (See Japanese page) 
(in English) MKID / suoerconducting resonator / superconducting detector / radio astronomy / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 401, SCE2013-47, pp. 73-77, Jan. 2014.
Paper # SCE2013-47 
Date of Issue 2014-01-16 (SCE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee SCE  
Conference Date 2014-01-23 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikaishinkou-kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Thin film, device technologies and their applications, etc. 
Paper Information
Registration To SCE 
Conference Code 2014-01-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Nb/Al bi-layer MKID camera 
Sub Title (in English) Temperature dependence of quality factor 
Keyword(1) MKID  
Keyword(2) suoerconducting resonator  
Keyword(3) superconducting detector  
Keyword(4) radio astronomy  
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1st Author's Name Masakazu Sekine  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Yutaro Sekimoto  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
3rd Author's Name Takashi Noguchi  
3rd Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
4th Author's Name Akihira Miyachi  
4th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
5th Author's Name Kenichi Karatsu  
5th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
6th Author's Name Tom Nitta  
6th Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
7th Author's Name Shigeyuki Sekiguchi  
7th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
8th Author's Name Takashi Okada  
8th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
9th Author's Name Masato Naruse  
9th Author's Affiliation Saitama University (Saitama Univ)
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Speaker Author-1 
Date Time 2014-01-24 09:55:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2013-47 
Volume (vol) vol.113 
Number (no) no.401 
Page pp.73-77 
#Pages 5 
Date of Issue 2014-01-16 (SCE) 

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