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Proceedings Paper

Analysis of the Focar-type silver-halide heterogeneous media
Author(s): Olga Vladimirov Andreeva
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Paper Abstract

An analysis of Focar-S a new material for 3-D holograms recording is carried out. The new material comprises a heterogeneous medium based on porous glass and silver halide as a light sensitive substratum. There are some characteristics of obtained holograms for both non-developed and developed samples. INTRODUCTION. FOCAR-S -MEDIUM FOR 3-D HOLOGRAMS RECORDING Focar-S volume medium comprises a heterogeneous system which is composed of porous quartzlike frame (porous glas) on the walls of inner cavities of which stiffphase cover of silver halide subfine-dispersed suspension in gelatin has been formed. The inner cavities which are not filled with light sensitive substratum form the net of open4hrough capillaries providing a possibility of medium post-exposure processing. It is the possibility of post-exposure processing largely reinforcing a latent image that results in high sensitivity of a silver halide photographical materials as compared to other light sensitive stuffs. However when recording 3-D holograms on homogeneous media of nearly 1 mm thick these two-stage processes could not find application owing at least to two reasons. 1. The restricted permeability of light sensitive material for developing substance and for soluble reaction products has to result in inhibition of development and to disastrous growth of its duration up to the value which is unsuitable for practical application. 2. Swelling of light sensitive medium in developing solution and subsequent non-uniform shrinking of it while the sample is being dried results

Paper Details

Date Published: 1 February 1991
PDF: 4 pages
Proc. SPIE 1238, Three-Dimensional Holography: Science, Culture, Education, (1 February 1991); doi: 10.1117/12.19397
Show Author Affiliations
Olga Vladimirov Andreeva, Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 1238:
Three-Dimensional Holography: Science, Culture, Education

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