Observation of Stimulated Orientational Scattering and Cross-Polarized Self-Starting Phase Conjugation in a Nematic Liquid-Crystal Film

摘要

We have observed stimulated extraordinary-ordinary wave scattering and crosspolarization phase conjugation effects in a nematic liquid crystal film. These processes require low optical power and are characterized by millisecond response speed. The effect is non-resonant, i.e., non-wavelength selective, and therefore could be applied throughout the near UV, through the visible and near IR, to the IR regime. These processes and liquid crystal devices may be useful for optical beam/image processing applications, and adaptive optics for aberration correction or suppression.