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Paper Abstract and Keywords
Presentation 2014-12-23 14:35
Crystal growth of GaSe crystals for the THz generation by liquid phase epitaxy TDM-CVP and evaluation
Kouhei Suzuki, Yuki Nagai, Kunihiko Yamamoto, Yohei Sato, Kensaku Maeda, Kyosuke Saito, Yutaka Oyama (Tohoku Univ.) ED2014-115
Abstract (in Japanese) (See Japanese page) 
(in English) GaSe crystals have high birefringence(no=2.9082, ne=2.5676 @1.06μm), wide transparency(0.6~20μm), and large nonlinear optical coefficient (d22 = 54 pm/V). For these superior properties, these crystals can generate high efficiency THz wave via difference frequency generation under collinear phase matching. THz generation efficiency of conventional Bridgman-grown GaSe crystals were decreased by thermal equilibrium point defects and non-stoichiometric composition. In this study, GaSe crystals for the THz wave generation were grown by the liquid phase epitaxy under controlled vapor pressure. Furthermore Fe-doped GaSe crystals for the purpose of prevention of free carrier absorption were grown by the same growth method. These crystals were evaluated by in comparison with the commercially available Bridgman grown crystals.
Keyword (in Japanese) (See Japanese page) 
(in English) GaSe / THz wave / Different frequency generation / Impurity doping / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 387, ED2014-115, pp. 97-102, Dec. 2014.
Paper # ED2014-115 
Date of Issue 2014-12-15 (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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ED2014-115

Conference Information
Committee ED  
Conference Date 2014-12-22 - 2014-12-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ED 
Conference Code 2014-12-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Crystal growth of GaSe crystals for the THz generation by liquid phase epitaxy TDM-CVP and evaluation 
Sub Title (in English)  
Keyword(1) GaSe  
Keyword(2) THz wave  
Keyword(3) Different frequency generation  
Keyword(4) Impurity doping  
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Keyword(6)  
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1st Author's Name Kouhei Suzuki  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Yuki Nagai  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Kunihiko Yamamoto  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Yohei Sato  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Kensaku Maeda  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
6th Author's Name Kyosuke Saito  
6th Author's Affiliation Tohoku University (Tohoku Univ.)
7th Author's Name Yutaka Oyama  
7th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2014-12-23 14:35:00 
Presentation Time 25 minutes 
Registration for ED 
Paper # ED2014-115 
Volume (vol) vol.114 
Number (no) no.387 
Page pp.97-102 
#Pages 6 
Date of Issue 2014-12-15 (ED) 

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