We report on a new photorefractive medium consisting of a hole-transporting polymer composite matrix, electro-optically active nanodroplets of liquid crystals, and cadmium sulfide quantum dots as photosensitizers. This medium exhibits greater than 90% internal diffraction efficiency and a net two-beam coupling gain of 22.5 cm-1 with a response time of <1 min . Data on optical transmission are also presented.
© 2002 Optical Society of America
Jeffrey G. Winiarz and Paras N. Prasad, "Photorefractive inorganic organic polymer-dispersed liquid-crystal nanocomposite photosensitized with cadmium sulfide quantum dots," Opt. Lett. 27, 1330-1332 (2002)