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Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Observation of conical scattering cones from a two-dimensional hexagonal photonic crystal based on a
Shing-Trong Wu1, Ming Shian Li, Andy Ying-Guey Fuh
1Department of Physics, National Cheng Kung University, Tainan, Taiwan 701.
Optics Letters
|November 28, 2008
Abstract:
We explore axial scattering from a two-dimensional hexagonal photonic crystal based on a polymer-dispersed liquid crystal at normal incidence. The scattering reveals symmetric cones over a range of frequencies. The observed cones disperse strongly outward, and their radii are determined by the wavelength of the probe beam. Such cones are generated by the coupling of forward-scattered beams of the refracted beams and the refracted beams themselves under momentum conservation.

