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Paper Abstract and Keywords
Presentation 2015-01-29 14:30
Ultralow-loss terahertz waveguides using a two-dimensional photonic crystal
Kazuisao Tsuruda, Asako Suminokura, Masayuki Fujita, Tadao Nagatsuma (Osaka Univ.) PN2014-46 OPE2014-171 LQE2014-158 EST2014-100 MWP2014-68 Link to ES Tech. Rep. Archives: OPE2014-171 LQE2014-158 EST2014-100 MWP2014-68
Abstract (in Japanese) (See Japanese page) 
(in English) Terahertz (THz) electromagnetic waves, which are located between the radio and light-wave regions (0.1-10 THz), have recently attracted much attention because of their many potential applications such as spectroscopic sensing, nondestructive imaging and ultra-broadband wireless communications. However, most existing THz-wave systems are cumbersome because they consist of bulky discrete components. Developing compact and integrated THz-wave devices is required to open new possible applications. In case use of metallic transmission lines in THz region, the intrinsic loss of metals becomes serious in contrast to microwave region. Here we focus on a two-dimensional photonic crystal where sufficient confinement of THz waves can be achieved in a thin dielectric structure with ultralow loss, as a THz-wave integration platform. In this paper, we report that the propagation and bending losses of the photonic-crystal waveguide are as small as <0.1 dB/cm and 0.3 dB/bend, respectively, in the 0.3-THz band. Also, we demonstrate 1.5-Gbit/s THz-wave communications and high-definition video transmission in the photonic-crystal waveguide of as long as 50 cm with bends of 28 times thanks to the ultralow loss properties.
Keyword (in Japanese) (See Japanese page) 
(in English) Terahertz / Photonic crystal / Waveguide / Integrated circuit / Terahertz communication / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 434, MWP2014-68, pp. 121-126, Jan. 2015.
Paper # MWP2014-68 
Date of Issue 2015-01-22 (PN, OPE, LQE, EST, MWP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 PN2014-46 OPE2014-171 LQE2014-158 EST2014-100 MWP2014-68 Link to ES Tech. Rep. Archives: OPE2014-171 LQE2014-158 EST2014-100 MWP2014-68

Conference Information
Committee EST OPE LQE EMT PN MWP IEE-EMT  
Conference Date 2015-01-29 - 2015-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To MWP 
Conference Code 2015-01-EST-OPE-LQE-EMT-PN-MWP-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Ultralow-loss terahertz waveguides using a two-dimensional photonic crystal 
Sub Title (in English)  
Keyword(1) Terahertz  
Keyword(2) Photonic crystal  
Keyword(3) Waveguide  
Keyword(4) Integrated circuit  
Keyword(5) Terahertz communication  
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1st Author's Name Kazuisao Tsuruda  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Asako Suminokura  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Masayuki Fujita  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Tadao Nagatsuma  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2015-01-29 14:30:00 
Presentation Time 25 minutes 
Registration for MWP 
Paper # PN2014-46, OPE2014-171, LQE2014-158, EST2014-100, MWP2014-68 
Volume (vol) vol.114 
Number (no) no.430(PN), no.431(OPE), no.432(LQE), no.433(EST), no.434(MWP) 
Page pp.121-126 
#Pages
Date of Issue 2015-01-22 (PN, OPE, LQE, EST, MWP) 


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