Temporal evolution of the angular response of a holographic diffraction grating in PVA/acrylamide photopolymer
摘要:
In this paper we evaluate the temporal evolution, after exposure, of a diffraction grating stored in a PVA/acrylamide photopolymer. We also study the overmodulation of the refractive index inside the hologram, which gives rise to a particular behaviour of the angular response of diffraction efficiency. This evolution takes place in our photopolymer due to the incorporation of dimethylacrylamide (DMAA), which is a liquid at room temperature and so favours diffusion of the species in solution from the zones of greater concentration to those of lower concentration.
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DOI:
10.1364/OE.11.000181
被引量:
年份:
2003


























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