Host: The Japanese Liquid Crystal Society
Name : Japanese Liquid Crystal Conference 2012
Location : [in Japanese]
Date : September 05, 2012 - September 07, 2012
We have found the new principle. i.e., helix untangled C-director anchoring in the homeotropically oriented chiral smecitc C (SC^*) phase. When homeotropically oriented SC^* phase, which is swollen by the photo curable acrylate monomers, is illuminated by UV light under appropriate in-plane DC electric field to unwind the helix, polymer nano-sheets are heterogeneously polymerized between the neighboring smectic layers, and anchor the C-director uniformly under the helix untangled state. In order to check the switching dynamics of the helix untangled C-director anchored state, we applied a rectangle pulsed electric filed E horizontally along the parallel to the layers. Transmitted light intensity between crossed Nichol polarizers, is quickly changed responded to E due to the interaction between the spontaneous polarization and the external electric filed. The response time of the C-director anchored sample is almost equivalent to the original SC^* phase (<1msec at 30℃). The response time is strongly dependent on the concentration of intercalated acrylate monomer and temperature.
