Properties Of Reflection Holograms Recorded In Polaroid's DMP-128 Photopolymer

R. T. Ingwall; M. Troll; W. T. Vetterling

doi:10.1117/12.939794

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4 June 1987 Properties Of Reflection Holograms Recorded In Polaroid's DMP-128 Photopolymer

R. T. Ingwall, M. Troll, W. T. Vetterling

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Proceedings Volume 0747, Practical Holography II; (1987) https://doi.org/10.1117/12.939794
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Optical and microstructural properties of reflection holograms recorded in DMP-128 are reported. The optical properties are determined from transmission spectra of the holograms by ignoring the relatively small effects of light scattering and absorption. Microstructure is revealed by light and electron microscopic examination of hologram sections prepared either by diamond grit abrasion or by freeze fracture. Fringe planes are clearly seen with both sectioning procedures. The spacing between adjacent planes is strongly affected by processing conditions. Standard processing produces reflection holograms with fringe plane spacing that decreases continuously from the film:substrate interface to the film:air interface. These holograms have wide spectral bandwidths (100-200nm) and irregular band shapes. Narrow bandwidth holograms are produced from slightly more complicated processing steps. The optical properties of both types of holograms are compared to a theoretical model developed to account for nonuniform fringe plane spacing. Important experimental features such as spectral bandwidth and diffraction efficiency are readily explained by the theory and the observed microstructure.

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R. T. Ingwall, M. Troll, and W. T. Vetterling "Properties Of Reflection Holograms Recorded In Polaroid's DMP-128 Photopolymer", Proc. SPIE 0747, Practical Holography II, (4 June 1987); https://doi.org/10.1117/12.939794

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