Abstract
Photorefractive polymers possessing a layered structure are shown to exhibit excellent photorefractive properties in the reflection grating geometry. A composite based on a rigid backbone of poly(p-phenyleneterephthalate) and pendent carbazole groups (PPT-CZ), the nonlinear optical chromophore piperidinodicyanostyrene (PDCST), and the sensitizer C60 shows in reflection geometry a gain coefficient of 104 cm−1 and a diffraction efficiency of 4.8 percent for an applied electric field of +60 V/ μm. The investigated composites do not contain any plasticizer. Nevertheless the layered structure insures excellent stability without sacrifying the large rotational electro-optic effect connected with a very low glass transition temperature associated with the side chain motion.
© 2003 Optical Society of America
PDF ArticleMore Like This
O. P. Kwon, S. J. Kwon, M. Jazbinsek, P. Günter, and S. H. Lee
CThI3 Conference on Lasers and Electro-Optics (CLEO:S&I) 2006
O-Pil Kwon, Mojca Jazbinsek, Seong-Ji Kwon, Peter Günter, and Suck-Hyun Lee
MB10 Photorefractive Effects, Photosensitivity, Fiber Gratings, Photonic Materials and More (PR) 2007
W. E. Moerner, A. Grunnet-Jepsen, D. Wright, M. S. De Clue, J. S. Siegel, and R. J. Twieg
OPM1 Advances in Photorefractive Materials, Effects and Devices (PR) 1999