Nano-Structure Liquid Crystals Induced by Microscopic Incompatibility

Chirality in Liquid Crystals: From Microscopic Origins to Macroscopic Structure

Molecular chirality leads to a wonderful variety of equilibrium structures, from the simple cholesteric phase to the twist-grain-boundary phases, and it is responsible for interesting and technologically important materials like ferroelectric liquid crystals. This paper will review some recent advances in our understanding of the connection between the chiral geometry of individual molecules an...

Microscopic Structure of Mesomorphic Phasesexperimental Investigations of the Structure of Thermotropic Liquid Crystals

From the literature of 1972, 1973, ahd early 1974, three research areas are selected for discussion : (1) the existence of smectic order in nematic phases, (2) the tilt angle in smectic C phases, and (3) the rotation of molecules about their long axes. (1) X-ray investigations have shown that there is a short range smectic C-like order in nematic phases in three homologous series in which there...

Photoalignment of liquid crystals by liquid crystals

We observed light-induced alignment of the nematic liquid crystal, 4, 4(')-n-pentylcyanobiphenyl (5CB), on a fused quartz. Irradiation of the adsorbed layer with polarized ultraviolet light produced homogeneous alignment in a 5CB-filled liquid crystal cell with the easy orientation axis perpendicular to the polarization direction. The measured anchoring energy increases with illumination up to ...

Comment on "photoalignment of liquid crystals by liquid crystals".

Nano-droplet formation in polymer dispersed liquid crystals

In this work we analyse the fabrication of Polymer Dispersed Liquid Crystals (PDLCs) using SU8-2002-2007 photoresist and 5CB and E7 Liquid Crystals. Also we report the nonlinear optical behaviour for these materials and for Polymer Dispersed Liquid Crystals with a Twisted Cell (T-PDLC). We found that depending of several parameters, the droplets size varies from nano to micro dimensions. We rep...