Thermomagnetic recording of highly Bi-substituted iron garnet film using scanning laser for spatial light modulation

被引：0

作者：

Sakaguchi, Hotaka ^{[1
]}

Honma, Takuma ^{[1
]}

Zhang, Jian ^{[1
]}

Awano, Hiroyuki ^{[2
]}

Sumi, Satoshi ^{[2
]}

Nonaka, Hirofumi ^{[3
]}

Chafi, Fatima Zahra ^{[1
]}

Ishibashi, Takayuki ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Mat Sci & Bioengn, Kamitomioka 1603-1, Nagaoka, Niigata 9402188, Japan

[2] Toyota Technol Inst, Hisakata 2-12-1,Tempaku, Nagoya, Aichi 4688511, Japan

[3] Aichi Inst Technol, Dept Business Adm, Yachigusa 1247, Toyota, Aichi 4700392, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2024年 / 63卷 / 10期

关键词：

spatial light modulation; magneto-optical effect; magnetic recording; Bi-substituted garnet film; magnetic thin film; thermomagnetic recording; DIGITAL HOLOGRAPHY; FARADAY-ROTATION; DRIVEN; ENHANCEMENT; FABRICATION; DEVICE;

D O I：

10.35848/1347-4065/ad7a7c

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spatial light modulations (SLM) utilizing the magneto-optical (MO) effect of magnetic materials are expected to offer fast switching and small pixel sizes as small as the wavelength of the light. However, the small MO effect is a major issue. In this paper, we report a thermomagnetic recording of highly bismuth-substituted garnet film, known for large Faraday effects. Y0.5Bi2.5Fe4GaO12 (Bi,Ga:YIG) film with a Faraday rotation of -4.66 degrees was used as an MO medium. A laser scanning thermomagnetic recording system using a Galvanometer mirror was developed and the size and quality of recorded magnetic domains were investigated. The smallest recorded magnetic domain diameter was 0.62 mu m with a small standard deviation of 0.09 mu m. Line patterns with a width of 1 mu m can be recorded in this film. We found that Bi,Ga:YIG films have potential as a material for SLMs with fast switching, submicron pixel size, and large MO effect.

引用

页数：6

共 3 条

[1] Bi-Substituted Iron Garnet Films for Thermomagnetic Recording, Photonics, and Plasmonics: Optimization of Synthesis Conditions Using Scanning Probe Microscopy
Prokopov, A. R.
Mikhailova, T., V
Danishevskaya, E., V
Shaposhnikov, A. N.
Berzhansky, V. N.
Karavainikov, A., V
Nedviga, A. S.
Nauhatsky, I. A.
Milyukova, E. T.
TECHNICAL PHYSICS, 2019, 64 (11) : 1709 - 1715
[2] Numerical analysis of one-dimensional magnetophotonic crystals with an active layer of a highly Bi-substituted iron garnet
Park, JH
Cho, JK
Nishimura, K
Uchida, H
Inoue, M
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2003, 42 (7A): : 4383 - 4386
[3] Strain-controlled MO effect on highly Bi-substituted Neodymium Iron Gallium Garnet thin films
Sasaki, Michimasa
Lou, Gengjian
Hashinaka, Takahiro
Meguro, Akira
Ninomiya, Minami
Ishibashi, Takayuki
Taniyama, Tomoyasu
20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015, 2015, 75 : 1370 - 1375

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