Paper
9 June 2006 DCG holograms as nanosized composite film elements
Peter St. Sharlandjiev, B. Markova
Author Affiliations +
Proceedings Volume 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information; 62520Q (2006) https://doi.org/10.1117/12.677001
Event: Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 2005, Varna, Bulgaria
Abstract
It is well known that dichromated gelatin is one of the best materials for phase hologram recording. Several competing hypotheses for the nature ofthe photoinduced response in DCG have been discussed in the literature, and still there is no generally accepted point of view. Recently we have demonstrated how the optical response of DCG holograms can be analyzed on the basis of light scattering from nano-voids, which appear in the process of hologram formation. We have assumed that the voids are ellipsoids with dimensions of 10 - 40 nm, i.e. we are within the approximations of Raleigh scattering. Here, we analyze the DCG reflection hologram performance in terms of rigorous theory of light scattering with no limitations for the size of the voids. Mathematical simulations of the reflection spectra give a plausible quantitative explanation of many experimental facts related to DCG holograms obtained by the so-called 'drastic' chemical treatment after exposure.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter St. Sharlandjiev and B. Markova "DCG holograms as nanosized composite film elements", Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 62520Q (9 June 2006); https://doi.org/10.1117/12.677001
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KEYWORDS
Holograms

Light scattering

Refractive index

Reflection

Scattering

Diffraction

Particles

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