Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.364, 453-460, 2001
Infrared photoinduced change of liquid crystal domains for a columnar mesophase
Infrared photoinduced change of liquid crystal domains was investigated for a hexagonal columnar phase of a triphenylene derivative. A uniform change of domains was observed when an infrared laser beam corresponding to the wavelength range with the absorption band of triphenylene core was irradiated. The texture change means that a change of the molecular alignment occurred and it seems that the direction of columns depends on the direction of the incident laser beam. It could provides a novel technology to control the alignment of liquid crystals.