Abstract
Refractive index grating recording is achieved in the infrared in a nematic liquid crystal placed between semiconductor CdTe substrates. Light-induced space-charge field created in photorefractive semiconductor substrates varies an alignment of liquid crystal molecules inhomogeneously in space forming a spatial modulation of the refractive index in liquid crystal. Two-beam coupling is studied in the hybrid cell, in which a gain factor Γ=16 cm−1 is achieved in the layer of liquid crystal of the sandwich.
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Gvozdovskyy, I., Shcherbin, K., Evans, D.R. et al. Infrared sensitive liquid crystal photorefractive hybrid cell with semiconductor substrates. Appl. Phys. B 104, 883–886 (2011). https://doi.org/10.1007/s00340-011-4374-x
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DOI: https://doi.org/10.1007/s00340-011-4374-x