Presentation 2016-10-05
Improvement of diffraction efficiency of volumetric magnetic hologram by magnetic assist recording conditions
Zen Shirakashi, Koudai Kawazu, Taichi Goto, Hiroyuki Takagi, Yuichi Nakamura, Pang Boey Lim, Hironaga Uchida, Mitsuteru Inoue,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Magnetic garnet films such as bismuth, dysprosium, and aluminum substituted yttrium iron garnet (Bi:YIG) are used for rewritable magnetic hologram. The diffraction efficiency depends on the Faraday rotation angle and is in proportion to strength of magnetization of the magnetic film. However, the diffraction efficiency is not enough high as expected from the calculation because the magnetization at the heated region may not be completely reversed. To improve the diffraction efficiency, magnetic assist recording method would be effective because it can enhance the intensity of reversed magnetization. In this study, we investigated the effects of magnetic assist recording through numerical simulation and experimentally obtained diffraction efficiency of Bi:YIG.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Magnetic hologram / Thermomagnetic recording / Magnetic assist
Paper # CPM2016-59
Date of Issue 2016-09-28 (CPM)

Conference Information
Committee CPM
Conference Date 2016/10/5(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Satoru Noge(Numazu National College of Tech.)
Vice Chair Fumihiko Hirose(Yamagata Univ.)
Secretary Fumihiko Hirose(NTT)
Assistant Takashi Sakamoto(NTT) / Yuichi Nakamura(Toyohashi Univ. of Tech.)

Paper Information
Registration To Technical Committee on Component Parts and Materials
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improvement of diffraction efficiency of volumetric magnetic hologram by magnetic assist recording conditions
Sub Title (in English)
Keyword(1) Magnetic hologram
Keyword(2) Thermomagnetic recording
Keyword(3) Magnetic assist
1st Author's Name Zen Shirakashi
1st Author's Affiliation Toyohashi University of Technology(TUT)
2nd Author's Name Koudai Kawazu
2nd Author's Affiliation Toyohashi University of Technology(TUT)
3rd Author's Name Taichi Goto
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 Pang Boey Lim
6th Author's Affiliation Toyohashi University of Technology(TUT)
7th Author's Name Hironaga Uchida
7th Author's Affiliation Toyohashi University of Technology(TUT)
8th Author's Name Mitsuteru Inoue
8th Author's Affiliation Toyohashi University of Technology(TUT)
Date 2016-10-05
Paper # CPM2016-59
Volume (vol) vol.116
Number (no) CPM-235
Page pp.pp.23-28(CPM),
#Pages 6
Date of Issue 2016-09-28 (CPM)