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12 June 1985 Hologram Recording With A New Polaroid Photopolymer System
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Proceedings Volume 0523, Applications of Holography; (1985) https://doi.org/10.1117/12.946298
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States
Abstract
Holography with a new photopolymer system, DMP-128, will be described. Films of DMP-l28 are coated on either solid or flexible substrates from an aqueous solvent. The resulting films, when stored dry, have a shelf life that exceeds nine months. The dry films are inactive and must be incubated for a few minutes in an environment of approximately 50% rh before laser exposure. Recording is possible with eitheF blue (442nm, 488nm), green (514nm), or red (633nm, 647nm) laser light. Exposure of 5mj/cm is sufficient for high diffraction efficiency (80%-95%) transmission holograms, while 30mj/cm2 is required for bright reflection holograms. It is not necessary to exclude atmospheric oxygen during hologram recording. Refractive index modulation of 0.03 is routinely achieved. After laser exposure a uniform white light illumination is used to complete the photo-polymerization. A single processing bath yields holograms with good environmental stability. An additional processing bath yields images with exceptional resistance to high humidity.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. T. Ingwall and H. L. Fielding "Hologram Recording With A New Polaroid Photopolymer System", Proc. SPIE 0523, Applications of Holography, (12 June 1985); https://doi.org/10.1117/12.946298
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