Influence of acoustic streaming on cholesteric liquid crystal molecular alignment

DOI

Bibliographic Information

Other Title
  • コレステリック液晶の配向に及ぼす超音波による流動の影響

Description

We investigate the influence of acoustic streaming on a cholesteric liquid crystal(CLC) molecular alignment. An increase of a cell thickness leads to a decrease in an ordering parameter of the CLC, because an alignment force effects in the vicinity of a polyimide surface. In the thick cell, the initial CLC does not have a planar alignment but a focal conic state in spite of the surface being coated with a planar polyimide and rubbed unidirectionally. To improve the CLC alignment, the acoustic streaming is induced using vibration of a piezoelectric ceramic plate. The acoustic streaming changes the CLC alignment from a focal conic state to a planar alignment. The treated cell reduces scattering and has the sharp band edges in a stop band.

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Keywords

Details 詳細情報について

  • CRID
    1390282680664759552
  • NII Article ID
    130004589740
  • DOI
    10.11538/ekitou.2007.0.61.0
  • ISSN
    24325988
    18803490
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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