Effect of high pressure on relaxation dynamics and crystallization kinetics of chiral liquid crystal in its smectic phase

The impact of high pressure on relaxation dynamics and the crystallization process in the smectic phase with antiferroelectric properties ( phase) of novel liquid crystal was studied.

Signal transmission encryption based on dye-doped chiral liquid crystal via tunable and efficient circularly polarized luminescence

Multi-channel adjustable chiral liquid crystal materials with outstanding circularly polarized luminescence (CPL) have aroused lots of interest. Here, we demonstrate a coumarin 6 (C6) doped chiral liquid crystal, exhibiting crosstalk-free...

Large Angle Forward Diffraction by Chiral Liquid Crystal Gratings with Inclined Helical Axis

A layer of chiral liquid crystal (CLC) with a photonic bandgap in the visible range has excellent reflective properties. Recently, two director configurations have been proposed in the literature for CLC between two substrates with periodic photo-alignment: one with the director parallel to the substrates and one with the director in the bulk parallel to the tilted plane. The transmission experiments under large angles of incidence (AOI) presented in this work prove that, in the bulk, the director does not remain parallel with the substrates. Because of the inclined helical axis, the full reflection band can be observed at a smaller AOI than in planar CLC. For sufficiently large AOI, the reflection of diffracted light is prohibited by total internal reflection and efficient diffraction occurs in the forward direction.