Dichromated Polyvinyl Alcohol for Real-Time Hologram Recording: A Study on the Effect of some External Electron Donors and Humidity
Photopolymer film have been used for hologram recording since late 1960’s and over the ensuring years they have become increasingly important to the commercialization of holography. Mass production of volume phase holograms to date has primarily involved dichromated gelatin and fine grain silver halide emulsions. Both silver halide emulsion and Dichromated Gelation (DCG) require a delicte wet processing followed by thickness changes, and are environmentally sensitive. Therefore, much work is being done on self-developing photopolymers for holography that can provide good diffraction efficiency and environmental stability [1–3]. Dichromated polyvinyl alcohol (DCPVA) seems a promising photosensitive material because of its self-development, reasonable diffraction efficiency, easy preparation and low cost [4–6].
KeywordsDiffraction Efficiency Exposure Energy Hologram Recording Recording Beam External Electron Donor
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