10 October 1997 Real-time holography via DFWM in thin liquid crystal films and thin photorefractive materials
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Abstract
We describe a coherence filtering technique in the near infrared (IR) based on degenerate four wave mixing (DFWM) in a Barium Titanate photorefractive crystal and a dye-doped liquid crystal layer. in our experiments, we used a self modelocked Ti:Sapphire laser and a Q-switched alexandrite laser as light sources. This technique can be used to provide instantaneous, single-shot, two-dimensional images ofthe internal structure ofmaterials versus depth.
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Vladimir B. Fleurov, Vladimir B. Fleurov, Denise Brown-Anderson, Denise Brown-Anderson, Paul Carroll, Paul Carroll, Christopher M. Lawson, Christopher M. Lawson, } "Real-time holography via DFWM in thin liquid crystal films and thin photorefractive materials", Proc. SPIE 3146, Nonlinear Optical Liquids and Power Limiters, (10 October 1997); doi: 10.1117/12.284159; https://doi.org/10.1117/12.284159
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