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Paper Abstract and Keywords
Presentation 2024-01-25 10:20
A Study on Partition of Unity Finite Element Method Using Adaptive Reference Wavevector
Taiki Matsuzaki, Akito Iguchi, Yasuhide Tsuji (Muroran Inst. Tech.) EST2023-101
Abstract (in Japanese) (See Japanese page) 
(in English) Finite element method (FEM), which is widly used for optical waveguide analysis, has excellent adaptability to arbitrary device structures and can analyze accurately by increasing the number of discretization.
On the other hand, electromagnetic field in simulation domain is approximated by polynomials in standard FEM, then, a large computational cost is required to express the wave propagation.
To solve the problem, partition of unity finite element method (PUFEM) has been proposed.
PUFEM, in witch the shape functions are enriched considering wave propagation, is able to analyze efficiently by reducing the required unknowns.
However, the computational accuracy depends on the value of wavenumber in the shape functions.
In this paper, we improve the numerical accuracy by calculating the reference wavenumber which is calculated iteratively and utilizing the reference wavenumber of propagation direction.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical waveguide analysis / Finite element method / Partition of unity finite element method / Adaptive reference wavevector / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 370, EST2023-101, pp. 13-17, Jan. 2024.
Paper # EST2023-101 
Date of Issue 2024-01-18 (EST) 
ISSN 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 EST2023-101

Conference Information
Committee EST  
Conference Date 2024-01-25 - 2024-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto University ROHM Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Simulation techniques, etc. 
Paper Information
Registration To EST 
Conference Code 2024-01-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Partition of Unity Finite Element Method Using Adaptive Reference Wavevector 
Sub Title (in English)  
Keyword(1) Optical waveguide analysis  
Keyword(2) Finite element method  
Keyword(3) Partition of unity finite element method  
Keyword(4) Adaptive reference wavevector  
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Keyword(6)  
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1st Author's Name Taiki Matsuzaki  
1st Author's Affiliation Muroran Institute of Technology (Muroran Inst. Tech.)
2nd Author's Name Akito Iguchi  
2nd Author's Affiliation Muroran Institute of Technology (Muroran Inst. Tech.)
3rd Author's Name Yasuhide Tsuji  
3rd Author's Affiliation Muroran Institute of Technology (Muroran Inst. Tech.)
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Speaker Author-1 
Date Time 2024-01-25 10:20:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EST2023-101 
Volume (vol) vol.123 
Number (no) no.370 
Page pp.13-17 
#Pages 5 
Date of Issue 2024-01-18 (EST) 

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