7 March 2016 Dynamic gratings recording in liquid crystal light valve with semiconductor substrate
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Abstract
Liquid crystal light valve with GaAs substrate operating in the transmission mode in the infrared is studied. The nonlinear phase shift of the transmitted light wave is measured as a function of applied voltage. The dynamic grating recording is achieved. A fourfold amplification of the weak signal beam is reached. The gain is increased by means of proper tilting of the cell that increases an effective pretilt of the liquid crystal molecules. The amplitude of the refractive index modulation and nonlinear coupling constant are estimated from the experimental results.
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Konstantin Shcherbin, Igor Gvozdovskyy, Dean R. Evans, "Dynamic gratings recording in liquid crystal light valve with semiconductor substrate", Proc. SPIE 9771, Practical Holography XXX: Materials and Applications, 97710U (7 March 2016); doi: 10.1117/12.2209552; https://doi.org/10.1117/12.2209552
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