B. L. Volodin

TL;DR: In this article, the authors describe a polymer composite with excellent photorefractive properties, achieving a diffraction efficiency approaching 100% and a net two-beam coupling gain of more than 200 cm-1.

TL;DR: Photorefractive polymers with high diffraction efficiency in the visible and near-infrared regions of the electromagnetic spectrum have been developed and have enabled demonstrations of imaging through scattering media, using a holographic time-gating technique at a wavelength that is compatible with the transparency of biological tissues and with the emission of low-cost semiconductor laser diodes.

TL;DR: The polymer provides a nonlinear medium in which real-time all-optical image correlation, and hence pattern recognition, can be accomplished and forms the basis of an optical security system, whereby documents are encoded with practically invisible phase masks, which may then be rapidly screened to verify the authenticity of the documents.

TL;DR: In this paper, the photorefractive effect in functionalized polymer-dispersed liquid crystals was observed, where the photoconductive properties were provided by the polymer matrix, and the field-dependent refractive-index changes were generated by the dispersed nematic liquid-crystal droplets.

TL;DR: In this article, the performance of photoref_ ract1ve polyme_rs.base~ on the photoconducting polymer host poly( N-vinylcarbazole) 1s 1nvest1gated, and the use of these materials as recording media in dynamic holography and other applications is evaluated.