화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.358, 185-198, 2001
Two wave mixing in holographic polymer dispersed liquid crystal (H-PDLC) formation
The intensity of transmitted laser beams is monitored during the holographic formation of polymer dispersed liquid crystal gratings. Significant attenuation of the total transmitted intensity is experienced after brief illumination. In most cases the attenuation increases for several seconds before reaching a steady-state value. Analysis of the individual beam intensities reveals energy exchange between the beams in a nonlinear two-wave mixing process. This information is analyzed to help gain insight into the complex dynamics of H-PDLC formation.