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| Presentation | 2012-09-25 14:20 Improvement of diffraction efficiency of volumetric magnetic holograms with magnetic garnet films Naoto Sagara, Yukihiro Masaki, Pang Boey Lim, Hiroyuki Takagi, Yuichi Nakamura, Mitsuteru Inoue (TUT)  CPM2012-88 Link to ES Tech. Rep. Archives: CPM2012-88 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The hologram memory is expected as one of the high recording density technology. We have studied magnetic garnet films as hologram material without light shielding. The hologram recorded in magnetic material by volumetric thermomagnetic writing is reconstructed as phase hologram from volumetric distribution of the magnetization. Increase of diffraction efficiency is important to achieve high recording density by volumetric magnetic hologram. In this paper, we compared computer simulation with experiments to find a better condition for high diffraction efficiency. The use of short pulse laser of 50 psec for recording was found effective to achieve high diffraction efficiency though the suppression of heat diffusion. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | hologram memory / magnetic garnet film / thermomagnetic recording / thermal diffusion / improvement of diffraction efficiency / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 214, CPM2012-88, pp. 15-18, Sept. 2012. | |
| Paper # | CPM2012-88 | |
| Date of Issue | 2012-09-18 (CPM) | |
| ISSN | Print edition: ISSN 0913-5685 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 | CPM2012-88 Link to ES Tech. Rep. Archives: CPM2012-88 |
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| Conference Information | |
| Committee | CPM |
| Conference Date | 2012-09-25 - 2012-09-25 |
| 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 | 2012-09-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 with magnetic garnet films |
| Sub Title (in English) | |
| Keyword(1) | hologram memory |
| Keyword(2) | magnetic garnet film |
| Keyword(3) | thermomagnetic recording |
| Keyword(4) | thermal diffusion |
| Keyword(5) | improvement of diffraction efficiency |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoto Sagara |
| 1st Author's Affiliation | Toyohashi University of Technology (TUT) |
| 2nd Author's Name | Yukihiro Masaki |
| 2nd Author's Affiliation | Toyohashi University of Technology (TUT) |
| 3rd Author's Name | Pang Boey Lim |
| 3rd Author's Affiliation | Toyohashi University of Technology (TUT) |
| 4th Author's Name | Hiroyuki Takagi |
| 4th Author's Affiliation | Toyohashi University of Technology (TUT) |
| 5th Author's Name | Yuichi Nakamura |
| 5th Author's Affiliation | Toyohashi University of Technology (TUT) |
| 6th Author's Name | Mitsuteru Inoue |
| 6th Author's Affiliation | Toyohashi University of Technology (TUT) |
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| Speaker | Author-1 |
| Date Time | 2012-09-25 14:20:00 |
| Presentation Time | 25 minutes |
| Registration for | CPM |
| Paper # | CPM2012-88 |
| Volume (vol) | vol.112 |
| Number (no) | no.214 |
| Page | pp.15-18 |
| #Pages | 4 |
| Date of Issue | 2012-09-18 (CPM) |
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