Challenge of Ultrafast All-Optical Magnetic Recording Using Localized Circularly Polarized Light Excited by Nano-Antennas
Project/Area Number |
22560349
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Electron device/Electronic equipment
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Research Institution | Nihon University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
NAKAGAWA Katsuji 日本大学, 理工学部, 教授 (20221442)
ITOH Akiyoshi 日本大学, 理工学部, 教授 (60059962)
TSUKAMOTO Arata 日本大学, 理工学部, 准教授 (30318365)
ASHIZAWA Yoshito 日本大学, 理工学部, 助教 (10453911)
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Project Period (FY) |
2010 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | マイクロ波 / ミリ波 / 計算電磁気学 / 電磁界解析 / 光直接記録 / 高速磁気記録 / 高密度磁気記録 / ナノアンテナ / 粒子媒体 / 近接場光 / 局所的円偏光 / 近接電光 / 円偏光 |
Research Abstract |
We have designed ultra fast and ultra high-density magnetic recording system using electromagnetic simulation. Our novel system is 100,000 times faster than conventional one and recording density is over 2Tbit/inch^2. The system consists of plasmonic cross antennas to generate the localized circularly polarized light and bit-patterned media to store information. Nano antennas were fabricated and we had a success of an experiment of ultra fast magnetic recording using a femto laser pulse.
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Report
(4 results)
Research Products
(89 results)
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[Journal Article] Thermally Assisted Magnetic Recording Applying Optical Near Field with Ultra Short-Time Heating2013
Author(s)
K. Nakagawa, A. Tajiri, K. Tamura, S.Toriumi, Y. Ashizawa, A. Tsukamoto, A. Itoh, Y. Sasaki, S. Saito, M. Takahashi, and S. Ohnuki
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Journal Title
Journal of the Magnetics Society of Japan
Volume: 37
Issue: 3-2
Pages: 119-122
DOI
NAID
ISSN
1882-2924, 1882-2932
Related Report
Peer Reviewed
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[Journal Article] Test Method for Thermally Assisted Magnetic Recording Applying Surface Plasmon Antennas Stacked on Magnetic Layer2012
Author(s)
K. Nakagawa, Y. Osa, A. Tajiri, Y.Ashizawa, S. Ohnuki, Y. Sasaki, K. Inoue, S. Hinata, G. X. Du, S. Saito, M. Takahashi, and A. Itoh
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Journal Title
Journal of the Magnetics Society of Japan
Volume: 36
Issue: 1_2
Pages: 58-61
DOI
NAID
ISSN
1882-2924, 1882-2932
Related Report
Peer Reviewed
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[Presentation] Thermally Assisted Magnetic Recording Applying Optical Near Field with Ultra Short-Time Heating2012
Author(s)
K. Nakagawa, A. Tajiri, K. Tamura, S. Toriumi, Y. Ashizawa, A. Tsukamoto, A. Itoh, Y. Sasaki, S. Saito, M. Takahashi, and S. Ohnuki
Organizer
International Conference of the Asian Union of Magnetics Societies
Place of Presentation
Nara Japan
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[Presentation] Thermally Assisted Magnetic Recording Test Method Applying Surface Plasmon Antenna Stacked on Granular Media2011
Author(s)
K.Nakagawa, Y.Osa, A.Tajiri, Y.Ashizawa, S.Ohnuki, Y.Sasaki, K.Inoue, S.Hinata, G.X.Du, S.Saito, M.Takahashi, A.Itoh
Organizer
Magnetics and Optics Research International Symposium 2011
Place of Presentation
Nijmegen, The Netherlands
Year and Date
2011-06-22
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[Patent(Industrial Property Rights)] 報記録ヘッド,情報記録装置,情報記録方法及び光デバイス2010
Inventor(s)
中川活二,芦澤好人,大貫進一郎,伊藤彰義,塚本新
Industrial Property Rights Holder
中川活二,芦澤好人,大貫進一郎,伊藤彰義,塚本新
Patent Publication Number
2012-022760
Acquisition Date
2010-07-16
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