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Paper Abstract and Keywords
Presentation 2013-03-05 13:10
Improvement of response speed and threshold voltage of terahertz liquid crystal devices
Takayuki Kumagai (Osaka Univ.), Ryouta Ito (Akita Prefectural Univ.), Hiroyuki Yoshida, Hitoshi Kubo, Akihiko Fujii (Osaka Univ.), Toshiaki Nose (Akita Prefectural Univ.), Masayoshi Tonouchi, Masanori Ozaki (Osaka Univ.) OME2012-95 Link to ES Tech. Rep. Archives: OME2012-95
Abstract (in Japanese) (See Japanese page) 
(in English) The terahertz (THz) region has attracted much attention for its potential of application. For details, THz region is expected for commercial applications including detection of hazardous materials and banned drugs, large-capacity wireless communications, medical diagnoses and so on. While these applications require control technology of polarization, phase and transmittance of THz waves, liquid crystals (LCs) are expected to achieve the requirement. LCs are widely used in the visible region possessing optical anisotropy and electric-field response. However, THz LC devices haven’t been used practically since response speed is slow and high voltage is required to drive LCs in the THz region. In this study, we report that improvement of response speed by using an etalon structure with a thin LC layer and low voltage driving of a THz $\lambda$/4 plate by adapting a thin-film conducting polymer PEDOT:PSS as a transparent electrode.
Keyword (in Japanese) (See Japanese page) 
(in English) liquid crystal / terahertz / response speed / low threshold voltage / transparent electrode / PEDOT:PSS / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 456, OME2012-95, pp. 19-23, March 2013.
Paper # OME2012-95 
Date of Issue 2013-02-26 (OME) 
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 OME2012-95 Link to ES Tech. Rep. Archives: OME2012-95

Conference Information
Committee OME  
Conference Date 2013-03-05 - 2013-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) AIST Kyushu Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) biotechnology, electronics, materials, interfaces, in situ observation, etc. 
Paper Information
Registration To OME 
Conference Code 2013-03-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of response speed and threshold voltage of terahertz liquid crystal devices 
Sub Title (in English)  
Keyword(1) liquid crystal  
Keyword(2) terahertz  
Keyword(3) response speed  
Keyword(4) low threshold voltage  
Keyword(5) transparent electrode  
Keyword(6) PEDOT:PSS  
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Keyword(8)  
1st Author's Name Takayuki Kumagai  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Ryouta Ito  
2nd Author's Affiliation Akita Prefectural University (Akita Prefectural Univ.)
3rd Author's Name Hiroyuki Yoshida  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Hitoshi Kubo  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Akihiko Fujii  
5th Author's Affiliation Osaka University (Osaka Univ.)
6th Author's Name Toshiaki Nose  
6th Author's Affiliation Akita Prefectural University (Akita Prefectural Univ.)
7th Author's Name Masayoshi Tonouchi  
7th Author's Affiliation Osaka University (Osaka Univ.)
8th Author's Name Masanori Ozaki  
8th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2013-03-05 13:10:00 
Presentation Time 25 minutes 
Registration for OME 
Paper # OME2012-95 
Volume (vol) vol.112 
Number (no) no.456 
Page pp.19-23 
#Pages
Date of Issue 2013-02-26 (OME) 


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