8 November 2001 Optical nonlinearities of liquid crystals controlled by surfaces
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We show that light-induced modification of the anchoring conditions can lead to an extraordinarily large optical response in dye-doped nematic liquid crystals. The bulk reorientation due to the collective elastic behavior of the liquid crystal is the origin of the nonlinearity, which occurs without a direct optical torque on the molecular director in the bulk, We call this effect SINE (Surface Induced Nonlinear Effect). These results can also explain the origin of the supra-nonlinear behavior recently observed in the same composites.
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Liana Lucchetti, Liana Lucchetti, D. Lucchetta, D. Lucchetta, Oriano Francescangeli, Oriano Francescangeli, Francesco F. Simoni, Francesco F. Simoni, "Optical nonlinearities of liquid crystals controlled by surfaces", Proc. SPIE 4457, Spatial Light Modulators: Technology and Applications, (8 November 2001); doi: 10.1117/12.447747; https://doi.org/10.1117/12.447747

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