Hologram Recording With A New Polaroid Photopolymer System

R. T. Ingwall; H. L. Fielding

doi:10.1117/12.946298

12 June 1985 Hologram Recording With A New Polaroid Photopolymer System

R. T. Ingwall, H. L. Fielding

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.

Citation Download Citation

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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