Abstract
Polymer-dispersed liquid crystals (PDLC), which consist of micro-sized nematic liquid crystal droplets dispersed in a polymer matrix, possess light scattering effect. In random media, light waves undergo a complicated multiple scattering process, and various phenomena such as random laser action have been reported. In this presentation, the optical properties in dye-doped PDLCs are studied. It is found that dye-doped PDLCs exhibit unique and interesting optical properties such as strongly temperature-dependent threshold for gain narrowing and emission band width.
