Ultra-fast and ultra-high density magnetic recording applying localized circularly polarized near-field light generated by plasmon antenna

2013 Fiscal Year Final Research Report

• Project/Area Number: 23560413
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Nihon University
• Principal Investigator: NAKAGAWA Katsuji 日本大学, 理工学部, 教授 (20221442)
• Co-Investigator(Renkei-kenkyūsha): ITOH Akiyoshi 日本大学, 名誉教授 (60059962) ; OHNUKI Shinichiro 日本大学, 理工学部, 准教授 (80386002) ; 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)
• Project Period (FY): 2011 – 2013
• Keywords: 記憶・記録 / 近接場光 / データストレージ / 磁気記録 / 熱工学 / マイクロナノデバイス / 電子・デバイス機器

Research Abstract

For an ultra-fast and ultra-high density magnetic recording using a photo-induced magnetization reversal phenomenon, we studied 1) establishing a method of confining circularly polarized light into an order of nano-meter size, 2) clarifying transient response of surface plasmon resonance, and 3) verifying an ultra-fast and ultra-high density recording. As a result, a confined small circularly polarized light in an isolated particle medium was confirmed by using both a four-leaf clover aperture and an isolated particle medium. It was shown that the circularly polarized light was able to be generated from surface plasmon polaritons, which propagated at an interface between a metal and a dielectric material. It is found that the circularly polarized light was exited in ~50 fs by a transient response analysis. A tiny magnetic recording mark of 62 x 67 nm2 were written by optical near field generated by a plasmon antenna using a 90-fs pulsed laser.

Research Products

• [Journal Article] Design of High Efficient Plasmonic Waveguide and Antenna for Thermally Assisted Magnetic Recording (2014)
  • Author(s): Kyosuke Tamura, Yoshito Ashizawa, Shinichiro Ohnuki, Katsuji Nakagawa
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 38 Pages: 131-134
  • Peer Reviewed
• [Journal Article] 新規な次世代超高速超高密度磁気記録に向けた取組 (2014)
  • Author(s): 大貫進一郎, 中川活二, 芦澤好人, 塚本新, 伊藤彰義
  • Journal Title: 電気学会論文誌A(基礎・材料・共通部門誌) Volume: Vol. 134, No.1 Pages: 26-29
• [Journal Article] Thermally Assisted Magnetic Recording Applying Optical Near Field with Ultra Short-Time Heating (2013)
  • Author(s): K. Nakagawa, A. Tajiri, K. Tamura, S. Toriumi, Y. Ashizawa, A. Tsukamoto, A. Itoh, Y. Sasaki, S. Saito, M. Takahashi, S. Ohnuki
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 37 Pages: 119-122
  • Peer Reviewed
• [Journal Article] Circularly Polarized Light Generated by Plasmon Antenna for All-Optical Magnetic Recording (2013)
  • Author(s): K. Tamura, T. Ota, Y. Ashizawa, A. Tsukamoto, A. Itoh, S. Ohnuki, and K. Nakagawa
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 37 Pages: 115-118
  • Peer Reviewed
• [Journal Article] Highly Efficient Waveguide by Using Surface Plasmon Polaritons for Thermally Assisted Magnetic Recording (2013)
  • Author(s): Yoshito Ashizawa, Takeshi Ota, Kyosuke Tamura, and Katsuji Nakagawa
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 37 Pages: 111-114
  • Peer Reviewed
• [Journal Article] 近接場光を用いた熱アシスト磁気記録とナノ粒子記録媒体 (2012)
  • Author(s): 中川活二, 芦澤好人, 塚本新, 伊藤彰義, 遠藤拓, 上坂保太郎, 新妻清純, 移川欣男
  • Journal Title: 日本大学理工学部理工学研究所研究ジャーナル Volume: No. 129 Pages: 11-18
  • Peer Reviewed
• [Journal Article] Dependence of Circularly Polarized Light Excited by Plasmon Aperture on Relative Position to Magnetic Particles for All-Optical Magnetic Recording (2012)
  • Author(s): T. Ota, Y. Ashizawa, K. Nakagawa, S. Ohnuki, H. Iwamatsu, A. Tsukamoto, A.Itoh
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 36 Pages: 66 – 69
  • Peer Reviewed
• [Journal Article] Test Method for Thermally Assisted Magnetic Recording Applying Surface Plasmon Antennas Stacked on Magnetic Layer (2012)
  • Author(s): Katsuji Nakagawa, Yuji Osa, Atsumu Tajiri, Yoshito Ashizawa, Shinichiro Ohnuki, Yuzo Sasaki, Shin Saito, Migaku Takahashi, Akiyoshi Itoh
  • Journal Title: J. Magn. Soc. Jpn. Volume: Vol. 36 Pages: 58-61
  • Peer Reviewed
• [Presentation] 表面プラズモンを活用した熱アシスト磁気記録 (2013)
  • Author(s): 中川活二
  • Organizer: 磁気記録・情報ストレージ研究会(MR)
  • Place of Presentation: 愛媛大学((10)MR)
  • Year and Date: 2013-12-13
• [Presentation] DESIGN OF HIGH EFFICIENT PLASMONIC WAVEGUIDE AND ANTENNA FOR THERMALLY ASSISTED MAGNETIC RECORDING (2013)
  • Author(s): Kyosuke Tamura, Yoshito Ashizawa, Shinichiro Ohnuki, Katsuji Nakagawa
  • Organizer: Magnetics and Optics Research International Symposium (MORIS) 2013
  • Place of Presentation: OMIYA SONIC CITY, Saitama, Japan(We-P-25)
  • Year and Date: 2013-12-04
• [Presentation] 伝搬型及び局在型表面プラズモンを活用した熱アシスト記録磁気ヘッド (2013)
  • Author(s): 芦澤好人, 田村京介, 林慶彦, 大貫進一郎, 中川活二
  • Organizer: 第56回ナノマグネティクス専門研究会
  • Place of Presentation: 中央大学駿河台記念館(4)
  • Year and Date: 2013-11-29
• [Presentation] Highly Efficient Plasmonic Waveguide for both All-Optical Magnetic Recording and Thermally Assisted Magnetic Recording (2013)
  • Author(s): Katsuji Nakagawa, Kyosuke Tamura, Yoshito Ashizawa, Shinichiro Ohnuki
  • Organizer: 8th Annual Conference on MMM
  • Place of Presentation: Denver, Colorado, USA(CT-02)
  • Year and Date: 2013-11-06
• [Presentation] Structural Analysis of Highly Efficient Plasmonic Waveguide for Thermally Assisted Magnetic Recording (2013)
  • Author(s): K. TAMURA, Y. HAYASHI, Y. ASHIZAWA, S. OHNUKI, K. NAKAGAWA
  • Organizer: The 24th Magnetic Recording Conference (TMRC 2013)
  • Place of Presentation: Tokyo Institute of Technology, Ookayama Campus, Tokyo, Japan
  • Year and Date: 2013-08-21
• [Presentation] Circularly Polarized Light Created by Surface Plasmon Polaritons for All-optical Magnetic Recording (2013)
  • Author(s): K. Nakagawa, K. Tamura, Y. Ashizawa, S. Ohnuki
  • Organizer: The 3rd International Symposium on Advanced Magnetic Materials and Applications (ISAMMA 2013)
  • Place of Presentation: Taichung, Taiwan(RE-06)
  • Year and Date: 2013-07-23
• [Presentation] ストレージ分野での表面プラズモンの活用 (2012)
  • Author(s): 中川活二
  • Organizer: アモルファス・ナノ材料第147委員会第118回研究会
  • Place of Presentation: 主婦会館, 東京
  • Year and Date: 2012-12-07
• [Presentation] 熱アシスト磁気記録実現への課題およびプラズモン導波路活用の検討 (2012)
  • Author(s): 中川活二
  • Organizer: IDEMA JAPAN (日本HDD協会)クォータリセミナー
  • Place of Presentation: 発明会館, 東京
  • Year and Date: 2012-10-12
• [Presentation] Circularly Polarized Light Generated by Plasmon Antenna for All-Optical Magnetic Recording (2012)
  • Author(s): T. Ota, K. Tamura, Y. Ashizawa, A. Tsukamoto, A. Itoh, S. Ohnuki, K. Nakagawa
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS) 2012
  • Place of Presentation: Nara, Japan
  • Year and Date: 2012-10-02
• [Presentation] High Efficient Waveguide by Using Surface Plasmon Polaritons for Thermally Assisted Magnetic Recording (2012)
  • Author(s): Y. Ashizawa, Ta. Ota, K. Tamura, K. Nakagawa
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS) 2012
  • Place of Presentation: Nara, Japan
  • Year and Date: 2012-10-02
• [Presentation] hermally Assisted Magnetic Recording Applying Optical Near Field with Ultra Short-Time Heating (2012)
  • Author(s): A. Tajiri, K. Tamura, S. Toriumi, Y. Ashizawa, K. Nakagawa, A. Tsukamoto, A. Itoh, Y. Sasaki, S. Saito, M. Takahashi, S. Ohnuki
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS) 2012
  • Place of Presentation: Nara, Japan(2pA-2)
  • Year and Date: 2012-10-02
• [Presentation] High efficient near-field antenna with plasmonic waveguide for thermally assisted magnetic recording (2012)
  • Author(s): Y. Ashizawa, T. Ota, K. Nakagawa
  • Organizer: 2012 IEEE International Magnetics Conference
  • Place of Presentation: Vancouver, Canada(CC-06)
  • Year and Date: 2012-05-09
• [Presentation] Dependence of Circularly Polarized Light Excited by Plasmon Aperture on Relative Position to Magnetic Particles for All-Optical Magnetic Recording (2011)
  • Author(s): T. Ota, Y. Ashizawa, K. Nakagawa, S. Ohnuki, H. Iwamatsu, A. Tsukamoto, A. Itoh
  • Organizer: Magnetics and Optics Research International Symposium (MORIS) 2011
  • Place of Presentation: Nijmegen, The Netherlands
  • Year and Date: 2011-06-22
• [Presentation] Thermally Assisted Magnetic Recording Test Method Applying Surface Plasmon Antenna Stacked on Granular Media (2011)
  • 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 (MORIS) 2011
  • Place of Presentation: Nijmegen, The Netherlands
  • Year and Date: 2011-06-22
• [Remarks]
  • URL: http://kenkyu-web.cin.nihon-u.ac.jp/Profiles/40/0003998/profile.html