Abstract
We report a holographically fabricated, optically switchable grating using azo-dye-doped, polymer-dispersed liquid crystals (LCs). Our experiments show that upon photoirradiation, the diffraction of the grating was decreased significantly. We believe that this switching behavior is due to two factors—nematic–isotropic phase transition of LCs and thermal expansion of the grating structure.
© 2009 Optical Society of America
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