Fabrication of artificial crystal structures using monosized particlesand application for THz wave photonic crystals

• Project/Area Number: 18360344
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: Tohoku University
• Principal Investigator: KAWASAKI Akira Tohoku University, 大学院・工学研究科, 教授 (50177664)
• Co-Investigator(Kenkyū-buntansha): 高木 健太 東北大学, 大学院・工学研究科, 助教 (00400284)
• Co-Investigator(Renkei-kenkyūsha): TAKAGI Kenta 東北大学, 大学院・工学研究科, 助教 (00400284)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥17,390,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥1,890,000); Fiscal Year 2008: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2007: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2006: ¥9,200,000 (Direct Cost: ¥9,200,000)
• Keywords: 粉末冶金 / 単分散粒子 / 粒子配列 / フォトニック結晶 / テラヘルツ波 / 車分散粒子

Research Abstract

球形単分散微金属粒子をテラヘルツ波長に対応する格子周期で複雑な3次元構造にも配列できる革新的方法の研究を行った。従来の粒子配列法では、大きく分けて粒度分布と粒子配列精度とに起因して粒子中心点が配列すべき格子点座標からずれを生じ、これが周期性など配列格子精度に大きく影響を及ぼす。本研究では配列する粒子の中心点を格子点座標に一致させ、この影響を限りなく排除することができる新技術を確立した。その結果、作製した3次元人工結晶は非常に精度よく作製されていることが実証され、0.203~0.215THzにおいて、ほぼ完全なフォトニックバンドギャップが形成されていることを明らかにした。

Research Products

• [Journal Article] Fabrication of three-dimensional terahertz photonic crystals with diamond structure by particle manipulation assembly (2009)
  • Author(s): Kenta Takagi and Akira Kawasaki
  • Journal Title: Applied Physics Letters 94, 021110
  • Peer Reviewed
• [Journal Article] Fabrication of three-dimensional terahertz photonic crystals with diamond structure by particle manipulation assembly (2009)
  • Author(s): Kenta Takagi and Akira Kawasaki
  • Journal Title: Applied Physics Letters 94 Pages: 21110-21110
  • Peer Reviewed
• [Journal Article] Solidification behavior of falling germanium droplets produced by pulsated orifice ejection method (2008)
  • Author(s): Satoshi Masuda, Kenta Takagi, Wei Dong, Kenta Yamanaka and Akira Kawasaki
  • Journal Title: Journal of Crystal Growth 310(11) Pages: 2915-2922
  • Peer Reviewed
• [Journal Article] Solidification behavior of falling germanium droplets produced by pulsated orifice ejection method (2008)
  • Author(s): Satoshi Masuda, Kenta Takagi, Wei Dong, Kenta Yamanaka and Akira Kawasaki
  • Journal Title: Journal of Crystal Growth 310 Pages: 2915-2922
  • Peer Reviewed
• [Journal Article] The Development of Mono-sized Micro Silicon Particles for Spherical Solar Cells by Pulsated Orifice Ejection Method (2007)
  • Author(s): W.Dong, S.Masuda, K.Takagi and A.Kawasaki
  • Journal Title: Materials Science Forum
  • Peer Reviewed
• [Journal Article] Preparation and Characterization of Monosized Germanium Micro Particles by Pulsated Orifice Ejection Method (2007)
  • Author(s): Satoshi Masuda, Kenta Takagi, Wei Dong and Akira Kawasaki
  • Journal Title: Materials Science Forum
  • Peer Reviewed
• [Journal Article] Preparation and Characterization of Monosized Germanium Micro particles by Pulsated Orifice Ejection Method (2007)
  • Author(s): Satoshi Masuda
  • Journal Title: Materials Science Forum 543-536 Pages: 113-116
• [Journal Article] The Development of Mono-sized Micro Silicon Particles for Spherical Solar Cells by Pulsated Orifice Ejection Method (2007)
  • Author(s): Wei Dong
  • Journal Title: Materials Science Forum 534-536 Pages: 149-152
• [Presentation] 3次元粒子配列法による球形格子ダイヤモンド型THz帯フォトニック結晶の作製 (2008)
  • Author(s): 高木健太
  • Organizer: 粉体粉末冶金協会平成20年度秋季大会
  • Place of Presentation: 九州大学医学部百年講堂
  • Year and Date: 2008-11-05
• [Presentation] Microassembly of Artificial Crystals by Inter-Particle Laser Welding and Optical Characterization (2008)
  • Author(s): Kenta Takagi
  • Organizer: The 10^<th> International Symposium on Multiscale, Multifunctional and Functionally Graded Materials
  • Place of Presentation: 仙台市(仙台国際センター)
  • Year and Date: 2008-09-23
• [Presentation] Microassembly of Artificial Crystals by Inter-Particle Laser Welding and Optical Characterization (2008)
  • Author(s): Kenta Takagi
  • Organizer: The 10^<th> International Symposium on Multiscale, Multifunctional and Functionally Graded Materials
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2008-09-23
• [Presentation] Solidification Behavior of Falling Germanium Droplet Produced by Pulsated Orifice Eiection Method (2008)
  • Author(s): Satoshi Masuda
  • Organizer: Joint Symposium on Materials Science and Engineering for the 21st Century
  • Place of Presentation: 慶州ドリームセンター(韓国)
  • Year and Date: 2008-09-18
• [Presentation] 球形格子3次元ダイヤモンドTHz帯フォトニック結晶の作製 (2008)
  • Author(s): 高木健太
  • Organizer: 2008年秋季応用物理学会学術講演会
  • Place of Presentation: 春日井市(中部大学)
  • Year and Date: 2008-09-04
• [Presentation] 球形格子3次元ダイヤモンドTHz帯フォトニック結晶の作製 (2008)
  • Author(s): 高木健太
  • Organizer: 2008年秋季応用物理学会学術講演会
  • Place of Presentation: 中部大学春日井キャンパス
  • Year and Date: 2008-09-04
• [Presentation] 微焦点レーザによる球形粒子マイクロ接合と3次元粒子集積化への応用 (2007)
  • Author(s): 高木健太
  • Organizer: 粉体粉末冶金協会平成19年度秋季大会
  • Place of Presentation: 京都工芸繊維大学
  • Year and Date: 2007-11-19
• [Presentation] 微焦点レーザによる粒子マイクロ接合と3次元人工結晶への応用 (2007)
  • Author(s): 高木健太
  • Organizer: 日本金属学会2007年秋期大会
  • Place of Presentation: 岐阜市(岐阜大学)
  • Year and Date: 2007-09-19
• [Presentation] 微焦点レーザによる粒子マイクロ接合と3次元人工結晶への応用 (2007)
  • Author(s): 高木健太
  • Organizer: 日本金属学会2007年秋期大会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-19