Enhancement of surface-relief gratings recorded on amphiphilic liquid-crystalline diblock copolymer by nanoscale phase separation

Haifeng Yu, Kunihiko Okano, Atsushi Shishido, Tomiki Ikeda, Kaori Kamata, Motonori Komura, Tomokazu Iyoda

研究成果: Article

88 引用 (Scopus)

抜粋

A series of novel amphiphilic liquid crystalline (LC) diblock copolymers (ADLC) consisting of flexible poly(ethylene oxide) (PEO) as a hydrophilic segment and poly(methacrylate) containing an azobenzene (AZO) moiety, are presented . Holographic gratings were recorded for ADLC - P40A37 and surface modulation was enhanced by nanoscale phase separation (NSPS). The holographic gratings can be inscribed at room temperature by two coherent laser beams with low intensities in a short time and subsequent annealing improves the diffraction efficiency (DE) by almost two orders of magnitude. These gratings can be applied to secure information storage since the information can be easily read out by thermal treatment.

元の言語English
ページ(範囲)2184-2188
ページ数5
ジャーナルAdvanced Materials
17
発行部数18
DOI
出版物ステータスPublished - 2005 9 16

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ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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