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Paper Abstract and Keywords
Presentation 2019-12-23 14:05
Progress on high output power THz QCLs developed by reducing horizontal parasitic current leakage
Tsung-Tse Lin, Li Wang (RIKEN), Ke Wang (Nanjing Univ.), Hideki Hirayama (RIKEN) ED2019-78
Abstract (in Japanese) (See Japanese page) 
(in English) Terahertz quantum cascade lasers (THz QCLs) are a promising high output semiconductor based THz sources with narrow bandwidth and wide operation frequency. Here we are theoretically analyzed THz QCLs based on the non-equilibrium Green’s function (NEGF) method to reduce long-term horizontal current leakage through high energy levels by optimize the structures with variable Al composition at extraction barrier. Simulations reveal a parasitic carrier leakage channel from upper laser level via the high energy state to the next period. By tuning the energy shift of these high energy levels with Al1-xGaxAs barriers and wells. THz QCL reducing the carrier population at such parasitic high energy levels and experimentally achieve a peak power of 450 mW.
Keyword (in Japanese) (See Japanese page) 
(in English) THz / QCLs / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 353, ED2019-78, pp. 9-12, Dec. 2019.
Paper # ED2019-78 
Date of Issue 2019-12-16 (ED) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ED2019-78

Conference Information
Committee ED THz  
Conference Date 2019-12-23 - 2019-12-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To ED 
Conference Code 2019-12-ED-THz 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Progress on high output power THz QCLs developed by reducing horizontal parasitic current leakage 
Sub Title (in English)  
Keyword(1) THz  
Keyword(2) QCLs  
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1st Author's Name Tsung-Tse Lin  
1st Author's Affiliation RIKEN (RIKEN)
2nd Author's Name Li Wang  
2nd Author's Affiliation RIKEN (RIKEN)
3rd Author's Name Ke Wang  
3rd Author's Affiliation Nanjing University (Nanjing Univ.)
4th Author's Name Hideki Hirayama  
4th Author's Affiliation RIKEN (RIKEN)
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Speaker
Date Time 2019-12-23 14:05:00 
Presentation Time 25 
Registration for ED 
Paper # IEICE-ED2019-78 
Volume (vol) IEICE-119 
Number (no) no.353 
Page pp.9-12 
#Pages IEICE-4 
Date of Issue IEICE-ED-2019-12-16 


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