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Paper Abstract and Keywords
Presentation 2015-01-22 11:05
Study of Superconducting Mid-infrared Photo-detectors with nano antennas
Akira Kawakami (NICT), Junsei Horikawa (Ibaraki Univ.), Masaharu Hyodo (Kanazawa Univ.), Shukichi Tanaka (NICT), Masanori Takeda (Shizuoka Univ.), Hisashi Shimakage (Ibaraki Univ.) SCE2014-52 Link to ES Tech. Rep. Archives: SCE2014-52
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed using nano-antennas with superconducting detector to improve the response performance of infrared detectors. Dipole nano-antennas which have an NbN load resistance were fabricated to evaluate the antenna properties. By using EM simulation, the antenna length was set at 2400 nm for the operation around 7-μm-wavelength. The antennas were evaluated by using Fourier transform infrared spectroscopy. In an evaluation of spectral transmission characteristics, clear absorption caused by antenna effects was observed at around 1400 cm-1. The results of the simulation qualitatively agreed with the results of the experiment. The antenna effective area was also evaluated, and the area was estimated to be approximately 5.4 μm2 at 1420 cm-1. We have fabricated prototype of mid-infrared photo-detectors which were formed with 45 dipole-antennas with an NbN strip. The antennas were placed within an area of 20 × 20 μm2, and they were connected by bias line in series. By the irradiation of mid-infrared (λ=4.9 μm) light, the responses with high polarization dependencies caused by antenna effect were observed.
Keyword (in Japanese) (See Japanese page) 
(in English) Detector / Infrared / Nano antenna / NbN / Polarization / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 406, SCE2014-52, pp. 19-24, Jan. 2015.
Paper # SCE2014-52 
Date of Issue 2015-01-15 (SCE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 SCE2014-52 Link to ES Tech. Rep. Archives: SCE2014-52

Conference Information
Committee SCE  
Conference Date 2015-01-22 - 2015-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikaishinkou-kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Thin film, device technologies and their applications, etc. 
Paper Information
Registration To SCE 
Conference Code 2015-01-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of Superconducting Mid-infrared Photo-detectors with nano antennas 
Sub Title (in English)  
Keyword(1) Detector  
Keyword(2) Infrared  
Keyword(3) Nano antenna  
Keyword(4) NbN  
Keyword(5) Polarization  
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Keyword(7)  
Keyword(8)  
1st Author's Name Akira Kawakami  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Junsei Horikawa  
2nd Author's Affiliation Ibaraki Universityogy (Ibaraki Univ.)
3rd Author's Name Masaharu Hyodo  
3rd Author's Affiliation Kanazawa University (Kanazawa Univ.)
4th Author's Name Shukichi Tanaka  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Masanori Takeda  
5th Author's Affiliation Shizuoka University (Shizuoka Univ.)
6th Author's Name Hisashi Shimakage  
6th Author's Affiliation Ibaraki Universityogy (Ibaraki Univ.)
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Speaker Author-1 
Date Time 2015-01-22 11:05:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2014-52 
Volume (vol) vol.114 
Number (no) no.406 
Page pp.19-24 
#Pages
Date of Issue 2015-01-15 (SCE) 


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