Paper Abstract and Keywords |
Presentation |
2019-01-22 14:00
[Poster Presentation]
Optical characteristics of liquid crystal devices using ultrasound vibration Yuki Harada, Marina Fukui, Hirokazu Yasui, Daisuke Koyama, Mami Matsukawa (Doshisha Univ.), Kentaro Nakamura (Tokyo Tech.) US2018-98 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Nematic liquid crystals are widely used in optical devices such as liquid crystal displays. We proposed a novel technique to control the molecular orientation of liquid crystals using ultrasound vibration, and the variable-focus liquid crystal lens was developed using this technique. The change in the refractive index of the lens gives the variable-focus function. However, the relationship between the change in the refractive index and the liquid crystal molecular orientation is unclear. In this report, we evaluated the liquid crystal molecular orientation in the lens under ultrasound excitation. The molecular orientation in the liquid crystal lens was predicted from the distributions of the transmitted light intensity under the Crossed-Nicol condition. It was found that the liquid crystal molecular orientation was changed remarkably between the antinode and node of the ultrasound vibration, and the molecules aligned towards the antinode of the flexural vibration. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Nematic liquid crystal / control of molecular orientation / acoustic radiation force / liquid crystal lens / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 409, US2018-98, pp. 95-98, Jan. 2019. |
Paper # |
US2018-98 |
Date of Issue |
2019-01-15 (US) |
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) |
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US2018-98 |
Conference Information |
Committee |
EA US |
Conference Date |
2019-01-22 - 2019-01-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Doshisha Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
[Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics |
Paper Information |
Registration To |
US |
Conference Code |
2019-01-EA-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Optical characteristics of liquid crystal devices using ultrasound vibration |
Sub Title (in English) |
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Keyword(1) |
Nematic liquid crystal |
Keyword(2) |
control of molecular orientation |
Keyword(3) |
acoustic radiation force |
Keyword(4) |
liquid crystal lens |
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1st Author's Name |
Yuki Harada |
1st Author's Affiliation |
Doshisha University (Doshisha Univ.) |
2nd Author's Name |
Marina Fukui |
2nd Author's Affiliation |
Doshisha University (Doshisha Univ.) |
3rd Author's Name |
Hirokazu Yasui |
3rd Author's Affiliation |
Doshisha University (Doshisha Univ.) |
4th Author's Name |
Daisuke Koyama |
4th Author's Affiliation |
Doshisha University (Doshisha Univ.) |
5th Author's Name |
Mami Matsukawa |
5th Author's Affiliation |
Doshisha University (Doshisha Univ.) |
6th Author's Name |
Kentaro Nakamura |
6th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech.) |
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Speaker |
Author-1 |
Date Time |
2019-01-22 14:00:00 |
Presentation Time |
120 minutes |
Registration for |
US |
Paper # |
US2018-98 |
Volume (vol) |
vol.118 |
Number (no) |
no.409 |
Page |
pp.95-98 |
#Pages |
4 |
Date of Issue |
2019-01-15 (US) |
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