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Paper Abstract and Keywords
Presentation 2019-12-24 10:05
Preliminary Study of Photocurrent Output from the Gate Electrode of a Grating-Gate Plasmonic THz Detector
Taku Saito, Masaya Suzuki, Tomotaka Hosotani, Taiichi Otsuji (Tohoku Univ.), Yuma Takida, Hiromasa Ito, Hiroaki Minamide (RIKEN.), Akira Satou (Tohoku Univ.) ED2019-88
Abstract (in Japanese) (See Japanese page) 
(in English) We have developed grating-gate plasmonic THz detectors, which are promising as room-temperature-operating, sensitive, high-speed THz detectors. In a conventional way, the photovoltage generated in a detector channel is output from the drain electrode. In this case, the photovoltage is proportional to the channel length only and is independent of the channel width, resulting in the output signal not proportional to the active area size. In this study, we propose a new detector implementation featured by “gate-out,” and theoretically show that the output is expected to be proportional to the active area size in case where the photocurrent is extracted from the gate electrode as a displacement current, leading to the greater output enhancement. Also, we experimentally show that the gate electrode of a grating-gate plasmonic THz detector works as an output port.
Keyword (in Japanese) (See Japanese page) 
(in English) Plasmon / THz detection / HEMT / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 353, ED2019-88, pp. 49-52, Dec. 2019.
Paper # ED2019-88 
Date of Issue 2019-12-16 (ED) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ED2019-88

Conference Information
Committee ED THz  
Conference Date 2019-12-23 - 2019-12-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To ED 
Conference Code 2019-12-ED-THz 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Preliminary Study of Photocurrent Output from the Gate Electrode of a Grating-Gate Plasmonic THz Detector 
Sub Title (in English)  
Keyword(1) Plasmon  
Keyword(2) THz detection  
Keyword(3) HEMT  
1st Author's Name Taku Saito  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Masaya Suzuki  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Tomotaka Hosotani  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Taiichi Otsuji  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Yuma Takida  
5th Author's Affiliation RIKEN (RIKEN.)
6th Author's Name Hiromasa Ito  
6th Author's Affiliation RIKEN (RIKEN.)
7th Author's Name Hiroaki Minamide  
7th Author's Affiliation RIKEN (RIKEN.)
8th Author's Name Akira Satou  
8th Author's Affiliation Tohoku University (Tohoku Univ.)
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Date Time 2019-12-24 10:05:00 
Presentation Time 25 
Registration for ED 
Paper # IEICE-ED2019-88 
Volume (vol) IEICE-119 
Number (no) no.353 
Page pp.49-52 
#Pages IEICE-4 
Date of Issue IEICE-ED-2019-12-16 

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