T. Vogeler et al., INVESTIGATIONS OF FILLED NEMATICS BY 2ND-HARMONIC GENERATION, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 282, 1996, pp. 419-428
We report first measurements of optical second harmonic generation in
filled nematics. They were performed in order to clarify open question
s about the anchoring conditions in this material, which consists of l
ow portions of pyrogenic silica dispersed in a nematic liquid crystal.
We compare the SHG behaviour with that of Polymer Dispersed Liquid Cr
ystals and show that in FN two contributions to SHG with different ori
gins have to be considered.