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Paper Abstract and Keywords
Presentation 2013-10-08 13:50
Improvement of Diffraction Efficiency of Volumetric Magnetic Holograms using Magnetic Garnet Media with Layered Structure
Ryosuke Isogai, Naoto Sagara, Kan Kobayashi, Hiroyuki Takagi, Yuichi Nakamura, Pang Boey Lim, Mitsuteru Inoue (Toyohashi Univ. of Tech.) CPM2013-91
Abstract (in Japanese) (See Japanese page) 
(in English) Hologram memory is a promising data storage technology with a high recording density and fast data-transfer rate. Magnetic garnet media such as bismuth substituted yttrium iron garnet (Bi:YIG) films have advantages of rewritability and unnecessity of shielding. The diffraction efficiency $eta$ of these garnet films is not sufficient to apply to the storage devices. In this report, we investigated bismuth substituted gadolinium iron garnet (Bi:GIG), DyBi:GIG, and GaBi:GIG, which have a large magnetooptical effect. We also proposed the double-layered media composed of Bi:YIG ($eta = 0.030%$) and Bi:GIG ($eta = 0.033%$) and the high diffraction efficiency of 0.049% was obtained.
Keyword (in Japanese) (See Japanese page) 
(in English) Magnetic hologram / Thermomagnetic recording / Multilayered structure / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 231, CPM2013-91, pp. 11-16, Oct. 2013.
Paper # CPM2013-91 
Date of Issue 2013-10-01 (CPM) 
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)
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Conference Information
Committee CPM  
Conference Date 2013-10-08 - 2013-10-08 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2013-10-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Diffraction Efficiency of Volumetric Magnetic Holograms using Magnetic Garnet Media with Layered Structure 
Sub Title (in English)  
Keyword(1) Magnetic hologram  
Keyword(2) Thermomagnetic recording  
Keyword(3) Multilayered structure  
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1st Author's Name Ryosuke Isogai  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
2nd Author's Name Naoto Sagara  
2nd Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
3rd Author's Name Kan Kobayashi  
3rd Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
4th Author's Name Hiroyuki Takagi  
4th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
5th Author's Name Yuichi Nakamura  
5th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
6th Author's Name Pang Boey Lim  
6th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
7th Author's Name Mitsuteru Inoue  
7th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
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Speaker Author-1 
Date Time 2013-10-08 13:50:00 
Presentation Time 25 minutes 
Registration for CPM 
Paper # CPM2013-91 
Volume (vol) vol.113 
Number (no) no.231 
Page pp.11-16 
#Pages 6 
Date of Issue 2013-10-01 (CPM) 

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