Manipulation of nano-particles by means of resonance dielectric dispersion

• Project/Area Number: 19810012
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: Osaka University
• Principal Investigator: SHOJI Satoru Osaka University, 大学院・工学研究科, 助教 (20437370)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,115,000 (Direct Cost: ¥2,710,000、Indirect Cost: ¥405,000); Fiscal Year 2008: ¥1,755,000 (Direct Cost: ¥1,350,000、Indirect Cost: ¥405,000); Fiscal Year 2007: ¥1,360,000 (Direct Cost: ¥1,360,000)
• Keywords: 光ピンセット / ナノ材料 / ナノチューブ・フラーレン / 量子ドット / マイクロ・ナノデバイス

Research Abstract

ナノ粒子の光マニピュレーションを行うためのレーザートラッピング装置を構築した。3軸ピエゾステージを備えた試料ステージを構築し、さらにラマン分光の光学系を導入して、レーザートラッピングしたナノ微粒子をラマン分光検出するシステムを構築した。構築したレーザートラッピング装置を用いて単層カーボンナノチューブの光捕捉を行った。He-Neレーザーを光源として、HiPco製単層カーボンナノチューブが分散された水溶液中に対物レンズ(NA1.4)で集光入射した。(13, 4)の金属性カーボンナノチューブだけが選択的に焦点内に捕捉されて濃度が増加するのを確認した。タイトバインディングモデルに基づく誘電率の計算から633nmの波長に共鳴して放射圧が増強されるカーボンナノチューブのカイラリティの同定を行った結果、実験結果と良い一致をみた。以上の結果は、レーザー光の波長によって選択的に所望のカイラリティの単層カーボンナノチューブを光抽出できることを意味している

Research Products

• [Journal Article] (2008)
  • Author(s): T. Rodgers, S. Shoji, Z. Sekkat, and S. Kawata
  • Journal Title: Phys.Rev. Lett 101 Pages: 127402-127402
• [Journal Article] (2008)
  • Author(s): S. Shoji, T. Rodgers, Z. Sekkat, and S. Kawata
  • Journal Title: Proc.SPIE 7037
• [Journal Article] (2008)
  • Author(s): S. Shoji, H. Suzuki, R. P. Zaccaria, Z. Sekkat, and S. Kawata
  • Journal Title: Phys.Rev. B 77 Pages: 15307-15307
• [Journal Article] (2008)
  • Author(s): H. Ishitobi, S. Shoji, T. Hiramatsu, H.-B. Sun, Z. Sekkat, and S. Kawata
  • Journal Title: Opt.Express 16 Pages: 14106-14106
• [Journal Article] (2008)
  • Author(s): S. Nakanishi, S. Shoji, H. Yoshikawa, Z. Sekkat, and S. Kawata
  • Journal Title: J. Phys.Chem B112 Pages: 3586-3586
• [Journal Article] (2008)
  • Author(s): R. P. Zaccaria, S. Shoji, H.-B. Sun, and S. Kawata
  • Journal Title: Appl.Phys B93 Pages: 251-251
• [Journal Article] Selective aggregation of single-walled carbon nanotubes using the large optical field gradient of a focused laser beam (2008)
  • Author(s): Thomas Rodgers, Satoru Shoji, Zouheir Sekkat, Satoshi Kawata
  • Journal Title: Physical Review Letters 101 Pages: 127402-127402
  • Peer Reviewed
• [Journal Article] Light-i nduced accumulation of single-wall carbonnanotubes dispersed in aqueous solution (2008)
  • Author(s): Satoru Shoji, Thomas Rodgers, Zouheir Sekkat, Satoshi Kawata
  • Journal Title: Proceedings of SPIE 7037 Pages: 703700-703700
  • Peer Reviewed
• [Journal Article] Optical polarizer made of uniaxially aligned shortsingle-wall carbon nanotubes embedded in a polymer film (2008)
  • Author(s): Satoru Shoji, Hidemasa Suzuki, Remo P. Zaccaria Zouheir Sekkat, Satoshi Kawata
  • Journal Title: Physical Review B 77 Pages: 153407-153407
  • Peer Reviewed
• [Journal Article] (2007)
  • Author(s): S. Nakanishi, S. Shoji, S. Kawata, and H.-B. Sun
  • Journal Title: Appl.Phys.Lett 91 Pages: 63112-63112
• [Presentation] Density increase of well-dispersed single-walled carbon nanotubes by laser trapping (2008)
  • Author(s): Thomas Rodgers, Satoru Shoji, and Satoshi Kawata
  • Organizer: The 34th Fullerene Nanotube Symposium
  • Place of Presentation: 名城大学
  • Year and Date: 2008-03-04
• [Presentation] Selective aggregation of metallic single-walled carbon nanotubes by laser trapping (2008)
  • Author(s): T. Rodgers, S. Shoji, and S. Kawata
  • Organizer: Focus on Microscopy
  • Place of Presentation: 淡路島
• [Presentation] Evaluation of two-photon polymerization reaction with confocal Raman microscopy (2008)
  • Author(s): S. Shoji, S. Nakanishi, H.-B. Sun, Z. Sekkat, and S. Kawata
  • Organizer: Focus on Microscopy
  • Place of Presentation: 淡路島
• [Presentation] Light-induced accumulation of single-wall carbon nanotubes dispersed in aqueous solution (2008)
  • Author(s): S. Shoji, T. Rodgers, Z. Sekkat, and S. Kawata
  • Organizer: SPIE Optics+Photonics
  • Place of Presentation: San Diego, USA
• [Presentation] Chirality-selective manipulation of single-wall carbon nanotubes by optical gradient force (2008)
  • Author(s): S. Shoji, T. Rodgers, and S. Kawata
  • Organizer: 平成20年度日本分光学会年次講演会
  • Place of Presentation: 仙台
• [Presentation] Density increase of well-dispersed single-walled carbon nanotubes by laser trapping (2008)
  • Author(s): T. Rodgers, S. Shoji, and S. Kawata
  • Organizer: The 34^<th> Fullerene Nanotube Symposium
  • Place of Presentation: 名城大学
• [Presentation] Selective aggregation of metallic single-walledcarbon nanotubes by laser trapping (2008)
  • Author(s): T. Rodgers, S. Shoji, S. Kawata
  • Organizer: Focus on Microscopy 2008
  • Place of Presentation: 淡路島夢舞台国際会議場
• [Presentation] Evaluation of two-photon polymerization reaction withconfocal Raman microscopy (2008)
  • Author(s): S. Shoji, S. Nakanishi, H. -B. Sun, Z. Sekkat, S. Kawata
  • Organizer: Focus on Microscopy 2008
  • Place of Presentation: 淡路島夢舞台国際会議場
• [Presentation] Size dependent transition temperature of polymer nano-wires fabricated by two-photon polymerization (2008)
  • Author(s): H. Yoshikawa, S. Nakanishi, S. Shoji, S. Kawata
  • Organizer: Focus on Microscopy 2008
  • Place of Presentation: 淡路島夢舞台国際会議場
• [Presentation] Light-induced accumulation of single-wall carbonnanotubes dispersed in aqueous solution (2008)
  • Author(s): Satoru Shoji, Thomas Rodgers, Zouheir Sekkat, Satoshi Kawata
  • Organizer: SPIE Optics + Photonics 2008
  • Place of Presentation: San Diego, USA
• [Presentation] Chirality-Selective Manipulation of Single-Wall Carbon Nanotubes by Optical Gradient Force (2008)
  • Author(s): Satoru Shoji, T. Rodgers S. Kawata
  • Organizer: 平成20年度日本分光学会年次講演会
  • Place of Presentation: 仙台 東北大学
• [Presentation] Size-dependent transition temperature of polymer nanowires fabrcaited by two-photon polymerizaiton
  • Author(s): H. Yoshikawa, S. Nakanishi, S. Shoji, and S. Kawata
  • Organizer: Focus on Microscopy
  • Place of Presentation: 淡路島