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1 October 1991 Phase conjugation by four-wave mixing in nematic liquid crystals
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Four-wave mixing in nematic liquid crystals differs from that in a different medium, such as atomic vapors or isotropic materials. In a nematic liquid crystals (NLC), wave mixing is due to spatial holograms constructed by the four interacting waves. Using the holographic approach, the authors have recorded diffractive index gratings in the NLCs. A theoretical study of nonlinear optical effects in NLCs, including degenerate four-wave mixing, is presented. Also presented are a description of the degenerate four-wave mixing optical geometry used and results obtained from the reconstruction of images.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Silverio P. Almeida and Srisuda Puang-nger Varamit "Phase conjugation by four-wave mixing in nematic liquid crystals", Proc. SPIE 1500, Innovative Optics and Phase Conjugate Optics, (1 October 1991);

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