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Paper Abstract and Keywords
Presentation 2009-09-14 13:25
Finite Difference Time Domain (FDTD) Analysis in Three-Dimensional Scattering Medium -- Boundary and Source Conditions --
Hideyuki Kumasawa, Kazuya Okimatsu, Shogo Tabata, Naoya Nishio, Tadatoshi Tanifuji (Kitami Inst. of Tech.) MBE2009-45
Abstract (in Japanese) (See Japanese page) 
(in English) Source and boundary conditions in FDTD analysis for optical pulse propagation in 3-D scattering medium are described. New boundary conditions are derived based on the integral form of diffusion equations by utilizing Gauss’s Theorem. The boundary conditions are defined by both fluence rate and radiant flux and isotropic point sources even in the surface cells are enabled to be incorporated. Next, source isotropic point source power assignments to the discrete Yee grids are proposed, in which the point source power is divided into the two adjacent Yee grid points in inversely proportional to the distance between the source and the grid points. Backward scattered reemissions from semi-infinite scattering medium of 0.02 and 2 mm-1 in absorption and scattering coefficients were calculated based on the FDTD analysis and the numerical results were compared with analytical solutions. The both are in good agreement, which justify the FDTD formulation proposed here.
Keyword (in Japanese) (See Japanese page) 
(in English) FDTD analysis / Boundary condition / Collimated source / Isotropic point source / Optical diffusion equation / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 194, MBE2009-45, pp. 41-46, Sept. 2009.
Paper # MBE2009-45 
Date of Issue 2009-09-07 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 MBE  
Conference Date 2009-09-14 - 2009-09-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME in general 
Paper Information
Registration To MBE 
Conference Code 2009-09-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Finite Difference Time Domain (FDTD) Analysis in Three-Dimensional Scattering Medium 
Sub Title (in English) Boundary and Source Conditions 
Keyword(1) FDTD analysis  
Keyword(2) Boundary condition  
Keyword(3) Collimated source  
Keyword(4) Isotropic point source  
Keyword(5) Optical diffusion equation  
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1st Author's Name Hideyuki Kumasawa  
1st Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
2nd Author's Name Kazuya Okimatsu  
2nd Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
3rd Author's Name Shogo Tabata  
3rd Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
4th Author's Name Naoya Nishio  
4th Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
5th Author's Name Tadatoshi Tanifuji  
5th Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
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Speaker Author-1 
Date Time 2009-09-14 13:25:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2009-45 
Volume (vol) vol.109 
Number (no) no.194 
Page pp.41-46 
#Pages
Date of Issue 2009-09-07 (MBE) 


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