Phase hologram formation in highly concentrated phenanthrenequinone–PMMA media

U V Mahilny, D N Marmysh, A L Tolstik, V Matusevich, R Kowarschik
2008 Journal of Optics. A, Pure and applied optics  
For phase holographic gratings in layers of polymethylmethacrylate, containing phenanthrenequinone in high concentration (nearly 3 mol%), a discrepancy between experimental (up to 9) and estimated (∼45) magnitudes of the thermal diffusion amplification coefficient has been revealed. Analysis of plausible reasons of the lower experimental efficiency of the diffusion amplification has been carried out. The influence of material deformations on the reflection grating formation process was
more » ... ted experimentally. It is shown that thermoactivated amplification of holograms under high phenanthrenequinone concentration and its profound modulation are depressed by the arising density 'grating'.
doi:10.1088/1464-4258/10/8/085302 fatcat:mbo5jnfpyvbhxcd3u6rzug3bhe