Noble molecular transformation method and fabrication of fine particles by ultra-high intense laser field

2008 Fiscal Year Final Research Report

• Project/Area Number: 19760503
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Material processing/treatments
• Research Institution: Tohoku University
• Principal Investigator: NAKAMURA Takahiro Tohoku University, 多元物質科学研究所, 助教 (50400429)
• Project Period (FY): 2007 – 2008
• Keywords: 非平衡プロセス / レーザー

Research Abstract

本研究では,フェムトパルスレーザー光を液体中に強く集光することで発生する高密度プラズマが物質に与える影響と,その後の冷却過程による超高速な非平衡物質創生プロセスの詳細について検討するとともに,同手法を応用し液体中から直接固体材料を作製するための基礎を確立することを目的とし研究を行った.炭化水素化合物液体へのレーザー照射では,分子変換を示唆する現象が確認されるとともに,同手法を貴金属イオンを含む水溶液へ応用することで,粒径数ナノメートルの貴金属ナノ粒子を水溶液から直接作製することに成功した.

Research Products

• [Journal Article] Fabrication of platinum particles by intense, femto-second laser pulse irradiation of aqueous solution (2009)
  • Author(s): T. Nakamura, K. Takasaki, A. Ito, S. Sato
  • Journal Title: Appl. Surf. Sci. (to be published)
• [Journal Article] Fabrication of gold nanoparticles in intense optical field by femtosecond laser irradiation of aqueous solution (2008)
  • Author(s): T. Nakamura, Y. Mochidzuki, S. Sato
  • Journal Title: J. Mater, Res. 23 Pages: 969-974
• [Journal Article] Observation of Light-Induced Drift Effect of Rubidium by Using Two Diode Lasers for Pumping and Re-Pumping (2008)
  • Author(s): Masaya Okamoto, Takahiro Nakamura and Shunichi Sato
  • Journal Title: Mater. Trans. 49 11 Pages: 2632
• [Presentation] Fabrication of Platinum Nanoparticles by Intense, Femtosecond Laser Pulse Irradiation of Aqueous Solution (2008)
  • Author(s): Takahiro Nakamura, Kouichi Takasaki, Shunichi Sato
  • Organizer: 6^<th> International Conference on Photo-Excited Processes and Application
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20080909-12
• [Presentation] Fabrication of noble metal nanoparticles in intense optical field by femtosecond laser irradiation of aqueous solution (2008)
  • Author(s): Takahiro Nakamura, Yuzuru Mochidzuki, Koichi Takasaki, Shinichi Sato
  • Organizer: Conference of Lasers and Electro-Optics 08
  • Place of Presentation: USA, San Jose
  • Year and Date: 20080504-11
• [Presentation] 高強度レーザー場による銀のナノ微粒子作製 (2008)
  • Author(s): 真柄英之,Herbani Yuliati,伊藤暁彦,中村貴宏,佐藤俊一
  • Organizer: 応用物理学会東北支部第63回学術講演会
  • Place of Presentation: 仙台
  • Year and Date: 2008-12-04
• [Presentation] 高強度レーザー場における白金ナノ粒子の作製-レーザー強度依存性- (2008)
  • Author(s): 中村貴宏,高崎晃一,佐藤俊一
  • Organizer: 第69回応用物理学会学術講演会
  • Place of Presentation: 春日井市
  • Year and Date: 2008-09-04
• [Presentation] 高強度レーザー場における白金ナノ粒子の作製 (2008)
  • Author(s): 高崎晃一,中村貴宏,佐藤俊一
  • Organizer: 第55回応用物理関係連合講演会
  • Place of Presentation: 船橋市
  • Year and Date: 2008-03-30
• [Presentation] Synthesis of Gold Particles in Intense Optical Field by Femtosecond Laser Ablation of Liquid Media (2007)
  • Author(s): Takahiro Nakamura, Yuzuru Mochidzuki, Shunichi Sato
  • Organizer: International Conference on Lasers Ablation
  • Place of Presentation: Spain, Tenerife
  • Year and Date: 20070924-28
• [Presentation] Synthesis of monodispersed DLC nanoparticles in high energetic field by femtosecond laser ablation in liquid benzene (2007)
  • Author(s): Takahiro Nakamura, Yuzuru Mochidzuki, Shinichi Sato
  • Organizer: Conference of Lasers and Electro-Optics 07
  • Place of Presentation: USA, Baltimore
  • Year and Date: 20070506-12
• [Presentation] 高強度レーザー場による分子変換手法を用いた白金微粒子作製 (2007)
  • Author(s): 高崎晃一,中村貴宏,佐藤俊一
  • Organizer: 応用物理学会東北支部第62回学術講演会
  • Place of Presentation: 八戸
  • Year and Date: 2007-12-07
• [Presentation] 液体レーザーアブレーション法による単分散金超微粒子の作製 (2007)
  • Author(s): 望月譲,中村貴宏,佐藤俊一
  • Organizer: 日本金属学会
  • Place of Presentation: 岐阜
  • Year and Date: 2007-09-21