• 제목/요약/키워드: Chiral nematic ($N^{*}$) phase

검색결과 2건 처리시간 0.018초

Thermo-Recording for The Composite System of (Disk-Like Molecules and Liquid Crystals)

  • Jeong, Hwan-Kyeong
    • 한국응용과학기술학회지
    • /
    • 제19권3호
    • /
    • pp.245-249
    • /
    • 2002
  • A (disk-like liquid crystal (DLC) monomer/liquid crystals(LCs)/chiral dopant/dichroic dye) composite was irradiated with ultraviolet (UV) light. The (DLC network/LCs/chiral dopant/dichroic dye) was formed in the homeotropically oriented smectic A(SA) phase by the surface orientation treatment and the electric field. A focal-conic texture exhibiting strong light scattering appeared in the heat-induced chiral nematic phase(N${\ast}$) of the composite upon heating. Thermo-recording in the composite system has been realized by using a He-Ne laser. The laser irradiation was induced the phase transitions from SA phase to chiral nematic(N${\ast}$) phase in the composite system.