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Paper Abstract and Keywords
Presentation 2026-05-15 11:00
Time response of single reflected light by separating the propagation direction of optical pulses using wavenumber space
Taiga Sugimoto, Masato Tomita, Kaito Kobayashi, Minami Saegusa, Seiya Kishimoto, Shuichiro Inoue, Shinitiro Ohnuki (Nihon Univ.) EST2026-2
Abstract (in Japanese) (See Japanese page) 
(in English) The authors are developing an imaging method that utilizes femtosecond optical pulses and a quantum pulse gate (QPG) for the visualization of biological samples. When an optical pulse irradiates a biological sample, it generates both single-scattered (single-reflected) light and multiply-scattered (multiple-reflected) light. The latter acts as background noise, degrading image contrast. To address this issue, we aim to improve the signal-to-noise ratio (SNR) by eliminating the multiply-scattered light using a quantum pulse gate. In this study, to achieve high-precision utilization of the quantum pulse gate, we identify the single-scattered light through the separation of optical pulse propagation directions using wave-number space.
Keyword (in Japanese) (See Japanese page) 
(in English) ADE-FDTD method / a quantum pulse gate / Two-Dimensional Fourier Transform / Biological imaging / Time-Resolved measurement / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 25, EST2026-2, pp. 5-10, May 2026.
Paper # EST2026-2 
Date of Issue 2026-05-08 (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 EST2026-2

Conference Information
Committee EST  
Conference Date 2026-05-15 - 2026-05-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Simulation techniques, etc. 
Paper Information
Registration To EST 
Conference Code 2026-05-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time response of single reflected light by separating the propagation direction of optical pulses using wavenumber space 
Sub Title (in English)  
Keyword(1) ADE-FDTD method  
Keyword(2) a quantum pulse gate  
Keyword(3) Two-Dimensional Fourier Transform  
Keyword(4) Biological imaging  
Keyword(5) Time-Resolved measurement  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Taiga Sugimoto  
1st Author's Affiliation Nihon University (Nihon Univ.)
2nd Author's Name Masato Tomita  
2nd Author's Affiliation Nihon University (Nihon Univ.)
3rd Author's Name Kaito Kobayashi  
3rd Author's Affiliation Nihon University (Nihon Univ.)
4th Author's Name Minami Saegusa  
4th Author's Affiliation Nihon University (Nihon Univ.)
5th Author's Name Seiya Kishimoto  
5th Author's Affiliation Nihon University (Nihon Univ.)
6th Author's Name Shuichiro Inoue  
6th Author's Affiliation Nihon University (Nihon Univ.)
7th Author's Name Shinitiro Ohnuki  
7th Author's Affiliation Nihon University (Nihon Univ.)
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Speaker Author-2 
Date Time 2026-05-15 11:00:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EST2026-2 
Volume (vol) vol.126 
Number (no) no.25 
Page pp.5-10 
#Pages 6 
Date of Issue 2026-05-08 (EST) 

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