Noise effects on Electroconvection in Nematic Liquid Crystals

• Project/Area Number: 18540377
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: HUH Jong-hoon Kyushu Institute of Technology, 大学院・情報工学研究院, 准教授 (50325578)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,890,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
• Keywords: 非平衡 / 非線形物理学 / 散逸構造 / 液晶 / ノイズ / 電気対流 / 相関時間

Research Abstract

基礎・応用科学の中で一般的に言われる「ノイズ」というものは、排除すべきものとして、その発生原因やマイナス的効果及び処理手法などが研究されてきた。しかし、近年の研究で、ノイズはある条件下ではプラス的な効果を引き起こすことが分かった。本研究は液晶対流系においてノイズの効果を電気・光学手法を駆使して実験的に調べた。様々なノイズ条件で特有な応答法則を確認し、その応用可能性を示した。

Research Products

• [Journal Article] Pure noise-induced pattern formations in a nematic liquid crystal (2009)
  • Author(s): Jong-Hoon Huh, Shoich Kai
  • Journal Title: Journal of the Physical Society of Japan (Letter) Vol.78, No.4 Pages: 43601-43601
  • Peer Reviewed
• [Journal Article] Pure noise-induced pattern formations in a nematic liquid crystal (2009)
  • Author(s): Jong-Hoon Huh, Shoichi Kai
  • Journal Title: Journal of the Physical Society of Japan (Letter) 78
  • Peer Reviewed
• [Journal Article] Noise Effects on Threshold of Electrohydrodynamic Convection in Nematic Liquid Crystals (2008)
  • Author(s): Jong-Hoon Huh, Shoichi Kai
  • Journal Title: Journal of the Physical Society of Japan (Letter) Vol.77, No.8 Pages: 83601-83601
  • Peer Reviewed
• [Journal Article] Noise Effects on Threshold of Electrohydrodynamic Convection in Nematic Liquid Crystals (2008)
  • Author(s): Jong-Hoon Huh, Shoichi Kai
  • Journal Title: Journal of the Physical Society of Japan (Letter) 77
  • Peer Reviewed
• [Journal Article] Electrohydrodynamic instability in cholesteric liquid crystals in the presence of a magnetic field (2007)
  • Author(s): Jong-Hoon Huh
  • Journal Title: Molecular Crystals and Liquid Crystals Vol.477 Pages: 561-570
  • Peer Reviewed
• [Journal Article] Noise-induced Electrohydrodynamic Patterns in Nematic Liquid Crystals (2007)
  • Author(s): Jong-Hoon Huh
  • Journal Title: Journal of the Physical Society of Japan (Letter) Vol.76, No.3 Pages: 33001-33001
  • Peer Reviewed
• [Journal Article] Electrohydrodynamic instability in cholesteric liquid crystals in the presence of a magnetic field (2007)
  • Author(s): Jong-Hoon Huh
  • Journal Title: Molecular Crystals and Liquid Crystals 477 Pages: 561-570
  • Peer Reviewed
• [Journal Article] Noise-induced Electrohydrodynamic Patterns in Nematic Liquid Crystals (2007)
  • Author(s): Jong-Hoon Huh
  • Journal Title: Journal of the Physical Society of Japan 76・3
• [Journal Article] Threshold Characteristics of Electrohydrodynamic Instability in Nematic Liquid Crystals under a Superimposing Magnetic Field (2006)
  • Author(s): Jong-Hoon Huh, Tetsuji Suenaga
  • Journal Title: Colloids and Surfaces A Vol.285 Pages: 627-630
  • Peer Reviewed
• [Journal Article] Threshold Characteristics of Electrohydrodynamic Instability in Nematic Liquid Crystals under a Superimposing Magnetic Field (2006)
  • Author(s): Jong-Hoon Huh, Tetsuji Suenaga
  • Journal Title: Colloids and Surfaces A 285 Pages: 627-630
• [Presentation] Electrohydrodynamic instability in cholesteric liquid crystals under controlling helical pitch (2006)
  • Author(s): Jong-Hoon Huh
  • Organizer: The 21th International Liquid Crystal Conference (ILCC2006)
  • Place of Presentation: Keystone, Colorado