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Paper Abstract and Keywords
Presentation 2016-01-28 09:55
FDTD analysis of terahertz filters with InSb gratings
Jun Shibayama, Ryo Umezawa, Junji Yamauchi, Hisamatsu Nakano (Hosei Univ.) PN2015-61 EMT2015-112 OPE2015-174 LQE2015-161 EST2015-118 MWP2015-87 Link to ES Tech. Rep. Archives: EMT2015-112 OPE2015-174 LQE2015-161 EST2015-118 MWP2015-87
Abstract (in Japanese) (See Japanese page) 
(in English) We investigate the transmission characteristics of THz filters with the localized surface plasmon resonance excited around indium antimonide gratings. First, we use an FR4 substrate with a thickness of $500~mu$m, paying attention to the effect of the loss of FR4. It is revealed that the transmittance becomes quite small due to the inherent loss of FR4. In addition, a high transmissivity cannot be obtained for the filter, even when the thickness of FR4 is reduced to 100$~mu$m. Therefore, we use a silicon substrate, the loss of which can almost be ignored in the THz band. The transmission characteristics are found to be significantly improved, working as a notch filter. However, the Fabry-Perot (FP) resonance is seen in the entire frequency range. To reduce the FP resonance, an anti-reflection coating (ARC) is introduced into the filter. It is shown that the use of the double-layer ARC reduces the FP resonance in the vicinity of the resonance frequency. Finally, we investigate the filters with a moth-eye structure. It is found that the FP resonance is reduced over a wide frequency range, compared with the filter with the double-layer ARC.
Keyword (in Japanese) (See Japanese page) 
(in English) InSb grating / THz filter / Anti-reflection structure / Moth-eye structure / Localized surface plasmon resonance / Finite-difference time-domain (FDTD) method / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 434, EST2015-118, pp. 169-174, Jan. 2016.
Paper # EST2015-118 
Date of Issue 2016-01-21 (PN, EMT, OPE, LQE, EST, MWP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF PN2015-61 EMT2015-112 OPE2015-174 LQE2015-161 EST2015-118 MWP2015-87 Link to ES Tech. Rep. Archives: EMT2015-112 OPE2015-174 LQE2015-161 EST2015-118 MWP2015-87

Conference Information
Conference Date 2016-01-28 - 2016-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To EST 
Conference Code 2016-01-LQE-EST-OPE-EMT-PN-MWP-EMT-PEM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) FDTD analysis of terahertz filters with InSb gratings 
Sub Title (in English)  
Keyword(1) InSb grating  
Keyword(2) THz filter  
Keyword(3) Anti-reflection structure  
Keyword(4) Moth-eye structure  
Keyword(5) Localized surface plasmon resonance  
Keyword(6) Finite-difference time-domain (FDTD) method  
1st Author's Name Jun Shibayama  
1st Author's Affiliation Hosei University (Hosei Univ.)
2nd Author's Name Ryo Umezawa  
2nd Author's Affiliation Hosei University (Hosei Univ.)
3rd Author's Name Junji Yamauchi  
3rd Author's Affiliation Hosei University (Hosei Univ.)
4th Author's Name Hisamatsu Nakano  
4th Author's Affiliation Hosei University (Hosei Univ.)
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Date Time 2016-01-28 09:55:00 
Presentation Time 25 
Registration for EST 
Paper # IEICE-PN2015-61,IEICE-EMT2015-112,IEICE-OPE2015-174,IEICE-LQE2015-161,IEICE-EST2015-118,IEICE-MWP2015-87 
Volume (vol) IEICE-115 
Number (no) no.430(PN), no.431(EMT), no.432(OPE), no.433(LQE), no.434(EST), no.435(MWP) 
Page pp.169-174 
#Pages IEICE-6 
Date of Issue IEICE-PN-2016-01-21,IEICE-EMT-2016-01-21,IEICE-OPE-2016-01-21,IEICE-LQE-2016-01-21,IEICE-EST-2016-01-21,IEICE-MWP-2016-01-21 

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