| 摘要 |
<p>The hologram comprises: a porous transparent sileceous body having a plurality of mutually interconnected microcavities or pores, the mean radius of which is lower than the wavelength of the hologram recording light and the wavelength of the hologram reading light, a photolysis product of a photolysable material, said product being attached to walls of certain microcavities and being spatially distributed in accordance with the recorded interference pattern, and a solid transparent polymeric material filling said microcavities, said polymeric material exhibiting local variations of refractive index, said variations being spatially modulated in conformity with the recorded interference pattern, said photolysis product being a polymerization modifier for a composition polymerizable into said polymeric filling material.</p> |
