PDb04 反応性アゾベンゼン液晶を用いた新しい光スイッチングデバイス

概要

論文の詳細を見る
We synthesized a novel double-end crosslinkable liquid crystal divinyl monomer and developed new setf-photocontrollable liquid crystal devices driven by the same pumping and probing light. The experiments were carried out by two steps. First is to form a polymerized wall between an aligning surface and liquid crystal molecules in bulk in antiparallel rubbed cells; it was accomplished by the irradiation of Ar ion laser (488 nm). Second is the measurement of the transmiltance with the change of the power of observation light in lhe cross-polarized optical microscope. The cell before the photoirradiation didn't show any extraordinary behavior with the change of the power of observation light. After the photoirradiation, however, the observed transmission of light is reduced with increasing the power of observation light and finally transmitted light is extinguished. We confirmed that its unusual behavior is due to the switching between the homogeneous and homeotropic states. In these devices, the interruption of the surface-molecules interaction by the polymerized wall plays an important role.
日本液晶学会の論文
1999-09-28