Fabrication 3-dimensional ferromagnetic-plasmonic nanostructures and the application as high-efficiency magnetooptical materials

2013 Fiscal Year Final Research Report

• Project/Area Number: 24760544
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Yokohama National University
• Principal Investigator: NAKASHIMA Seisuke 横浜国立大学, 工学研究院, 研究教員 (40462709)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 磁気光学効果 / プラズモニクス / 超短パルスレーザー

Research Abstract

Optical, magnetic, and magneto-optical properties have been investigated for the a-Fe2O3-doped transparent glasses irradiated with an infrared femtosecond laser and subsequently annealed. The values of the saturation magnetization at room temperature for the irradiated glasses were increased compared with the as-prepared samples, which is due to the precipitation of the ferrimagnetic ferrite nanoparticles (NPs). By adding further dopants as precursors of plasmonic metals, Au or Al NPs were space-selectively precipitated together with the ferrite NPs in a confined region after irradiation and thermal annealing. In the case of the glass codoped with Al, magneto-optical Faraday effect was enhanced and exhibited a negative distinct peak ascribed to a coupling between the ferrimagnetism of ferrite NPs and the localized surface plasmon resonance of Al NPs.

Research Products

• [Journal Article] (2014)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsumi Midorikawa and Kohki Mukai
  • Journal Title: Journal of Laser Micro/Nanoengineering Volume: (in press)
• [Journal Article] (2013)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsuhisa Tanaka, Katsumi Midorikawa, and Kohki Mukai
  • Journal Title: Applied Physics B Volume: 113 Pages: 451-456
  • DOI: 10.1007/s00340-013-5489-z
  • Peer Reviewed
• [Journal Article] (2013)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsumi Midorikawa, and Kohki Mukai
  • Journal Title: Applied Physics A; Materials Science & Processing Volume: 110 Pages: 765-769
  • DOI: 10.1007/s00339-012-7150-9
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsuhisa Tanaka, Masahiro Shimizu, Yasuhiko Shimotsuma, Kiyotaka Miura, Katsumi Midorikawa, and Kohki Mukai
  • Journal Title: Optics Express Volume: 20 Pages: 28191-28199
  • DOI: 10.1364/OE.20.028191
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsumi Midorikawa, and Kohki Mukai
  • Journal Title: Journal of Laser Micro/Nanoengineering Volume: 7 Pages: 212-216
  • DOI: 10.2961/jlmn/2012.02.0015
  • Peer Reviewed
• [Presentation] Plasmonic Enhancement of Magnetooptical Effect in Metal-ion-doped Glasses using Femtosecond Laser Irradiation (2013)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsuhisa Tanaka, Katsumi Midorikawa, Kohki Mukai
  • Organizer: 12th International Conference on Laser Ablation (COLA2013)
  • Place of Presentation: Ischia, Italy
  • Year and Date: 20131000
• [Presentation] Spatially selective modification of magneto-optical properties and nanostructures in Fe^<3+>- and Al-doped transparent glasses by using femtosecond laser irradiation (2013)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsumi Midorikawa, Kohki Mukai
  • Organizer: 8th International Conference on Photo-Excited Processes and Applications (ICPEPA8)
  • Place of Presentation: Rochester, NY, USA
  • Year and Date: 20130800
• [Presentation] Plasmonic modification of Faraday effect in metal-ion-doped glasses irradiated with femtosecond laser (2013)
  • Author(s): Seisuke Nakashima, Koji Sugioka, Katsumi Midorikawa, Kohki Mukai
  • Organizer: The 6th International Congress on Laser Advanced Materials Processing (LAMP2013)
  • Place of Presentation: Niigata, Japan
  • Year and Date: 20130700