Laser-Addressing Writerable Properties at Room Temperature for (Side-Chain Liquid Crystalline Copolymer/Liquid Crystals/Chiral Dopant/Dichroic Dye) Composite Systems

Abstract

Thermo-optical characteristics based on the S_A-N phase transition indused by laser irradiation were investigated for (side-chain liquid crystalline copolymer: LCcop/liquid crystals:LOs/chiral dopant/dye) composite systems with a homeotropically orientated cell. The laser thermo-recording to the composite systems was carried out with He-Ne laser at room temperature and both high contrast and stable memory were achieved.