We present a review of newly observed liquid crystal nonlinear responses induced by visible and infrared lasers and discuss some recently observed optical wave-mixing processes. Specifically, the dynamics of inter- and intramolecular energy transfer, response times, infrared refractive indices and their temperature dependences, and the basic principles of newly observed processes are described. These processes, in conjunction with cw or pulsed lasers spanning the visible through the infrared regime, will find applications in a great variety of nonlinear-optics-based devices.
I. C. Khoo, I. C. Khoo,
"Material Characteristics And Laser-Induced Responses And Wave Mixing In Nematic Liquid Crystals," Optical Engineering 28(10), 281108 (1 October 1989). https://doi.org/10.1117/12.7977095