The phenomenon of light concentration by a speckle screen based on a reference-free volume hologram

It is experimentally demonstrated that a speckle screen based on a reference-free volume hologram is capable of concentrating light in the visibility zone. Holographic speckle screens for the projection of images were formed in a bulk photosensitive material based on glycerol-containing dichromated...

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Bibliographic Details
Published in:Technical physics letters 2006-06, Vol.32 (6), p.542-544
Main Authors: Ganzherli, N. M., Denisyuk, Yu. N., Serdobintseva, A. P., Chernykh, D. F.
Format: Article
Language:English
Subjects:
Coherent radiation
Gelatin
Image quality
Photosensitivity
Radiation
Screens
Visibility
Volume holograms
White light
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Summary:It is experimentally demonstrated that a speckle screen based on a reference-free volume hologram is capable of concentrating light in the visibility zone. Holographic speckle screens for the projection of images were formed in a bulk photosensitive material based on glycerol-containing dichromated gelatin (DCG). With such screens formed using radiation with a wavelength (0.442 nm) in the spectral range of DCG photosensitivity, it is possible to obtain high-quality image projections using both coherent radiation with a different wavelength and white light. The projection properties of speckle screens were studied, and their ability to concentrate light in the visibility zone was confirmed.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785006060289