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Optical Engineering

Mechanism Of Hologram Formation In DMP-128 Photopolymer
Author(s): R. T. Ingwall; Mark Troll
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Paper Abstract

Electron micrographs of volume phase holograms recorded in DMP-128 reveal microstructure that is responsible for holographic activity. Solid and porous layers alternate with a spacing commensurate with the recorded fringe pattern. The difference in material density between the solid and porous regions accounts for the refractive index modulation and therefore the holographic activity of DMP-128 holograms. The pores of the holograms are interconnected and can be filled with many low and moderate viscosity liquids. Diffraction efficiency, bandwidth, and wavelength of maximum efficiency are profoundly and predictably affected by filling the hologram pores.

Paper Details

Date Published: 1 June 1989
PDF: 6 pages
Opt. Eng. 28(6) 286586 doi: 10.1117/12.7977005
Published in: Optical Engineering Volume 28, Issue 6
Show Author Affiliations
R. T. Ingwall, Polaroid Cornoration (United States)
Mark Troll, Polaroid Corporation (United States)

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