Gallego, Sergi, Márquez, Andrés, Méndez Alcaraz, David Israel, Neipp, Cristian, Ortuño, Manuel, Beléndez, Augusto, Fernandez-Varo, Helena, Pascual, Inmaculada
Direct analysis of monomer diffusion times in polyvinyl/acrylamide materials
GALLEGO RICO, Sergi, et al. "Direct analysis of monomer diffusion times in polyvinyl/acrylamide materials". Applied Physics Letters. Vol. 92, Issue 7 (18 Febr. 2008). ISSN 0003-6951, pp. 073306-1/3
URI: http://hdl.handle.net/10045/9196
DOI: 10.1063/1.2836948
ISSN: 0003-6951 (Print)
Abstract: 
We propose an alternative, direct method to calculate monomer diffusion times in photopolymer materials. Very long period gratings are recorded in the photopolymer, and the real time variation in diffraction efficiency due to monomer diffusion is then analyzed. In photopolymers, monomer diffusion plays a fundamental role in hologram formation. However, since many interrelated parameters affect hologram formation, the usual techniques do not allow for an independent estimation of monomer diffusion times. The direct method proposed is applied to two polyvinyl based photopolymers with different molecular weights.
Keywords:Holography, Holographic recording materials, Photopolymers
American Institute of Physics
info:eu-repo/semantics/article