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 |
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 |
OME2012-95 Link to ES Tech. Rep. Archives: OME2012-95 |
|