Márquez, Andrés, Neipp, Cristian, Beléndez, Augusto, Gallego, Sergi, Ortuño, Manuel, Pascual, Inmaculada Edge-enhanced imaging with polyvinyl alcohol/acrylamide photopolymer gratings MÁRQUEZ RUIZ, Andrés, et al. "Edge-enhanced imaging with polyvinyl alcohol/acrylamide photopolymer gratings". Optics Letters. Vol. 28, No. 17 (Sept. 2003). ISSN 0146-9592, pp. 1510-1512 URI: http://hdl.handle.net/10045/9144 DOI: 10.1364/OL.28.001510 ISSN: 0146-9592 (Print) Abstract: We demonstrate edge-enhanced imaging produced by volume phase gratings recorded on a polyvinyl alcohol/acrylamide photopolymer. Bragg diffraction, exhibited by volume gratings, modifies the impulse response of the imaging system, facilitating spatial filtering operations with no need for a physical Fourier plane. We demonstrate that Kogelnik’s coupled-wave theory can be used to calculate the transfer function for the transmitted and the diffracted orders. The experimental and simulated results agree, and they demonstrate the feasibility of our proposal. Keywords:Holography, Holographic optical elements, Imaging processing, Holographic recording materials Optical Society of America info:eu-repo/semantics/article