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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
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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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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)  
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
Date of Issue 2019-01-15 (US) 


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