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Paper Abstract and Keywords
Presentation 2018-01-23 13:00
[Poster Presentation] Numerical Simulation of Acoustic Diodes Based on Indirect Interband Transitions
Shuneki Katsu, Atsushi Ishikawa, Kenji Tsuruta (Okayama Univ.) US2017-99
Abstract (in Japanese) (See Japanese page) 
(in English) We designed an acoustic diode consisting of a water core sandwiched between metal clads based on the indirect interband transition by numerical simulation, and evaluated its ultrasonic propagation characteristics. The parameters which are determined to satisfy exciting an indirect transition from mode dispersion relation of the two-dimensional acoustic waveguide, and a spatio-temporal density modulation is applied into the center of the waveguide core. Numerical simulations prove that the phase matching condition is satisfied only for the forward propagation, not for the backward one. Furthermore, we validated this design by simulating its efficiency of the pressure conversion.
Keyword (in Japanese) (See Japanese page) 
(in English) ultrasonic / acoustic waveguide / dispersion relation / acoustic indirect inter-band transition / finite difference time domain method / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 398, US2017-99, pp. 89-91, Jan. 2018.
Paper # US2017-99 
Date of Issue 2018-01-16 (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)
Download PDF US2017-99

Conference Information
Committee US EA  
Conference Date 2018-01-23 - 2018-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To US 
Conference Code 2018-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Numerical Simulation of Acoustic Diodes Based on Indirect Interband Transitions 
Sub Title (in English)  
Keyword(1) ultrasonic  
Keyword(2) acoustic waveguide  
Keyword(3) dispersion relation  
Keyword(4) acoustic indirect inter-band transition  
Keyword(5) finite difference time domain method  
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1st Author's Name Shuneki Katsu  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Atsushi Ishikawa  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Kenji Tsuruta  
3rd Author's Affiliation Okayama University (Okayama Univ.)
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Speaker Author-1 
Date Time 2018-01-23 13:00:00 
Presentation Time 120 minutes 
Registration for US 
Paper # US2017-99 
Volume (vol) vol.117 
Number (no) no.398 
Page pp.89-91 
#Pages 3 
Date of Issue 2018-01-16 (US) 

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