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Proceedings Paper

Panchromatic emulsions for recording colour holograms
Author(s): Manuel Ulibarrena; Luis Carretero; Roque Madrigal; Pablo Acebal; Salvador Blaya; Antonio Fimia
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Paper Abstract

We present the results obtained using two different types of the new panchromatic ultra-fine grain emulsion BBVPan, manufactured by Colourholographics Ltd. The first emulsion type was manufactured by mixing three monochromatic precipitates, so that each silver halide grain is sensitised with one dye only. The second emulsion was obtained by making one single precipitate containing all three dyes mixed together, so that each silver halide grain may be sensitised by the three dyes. Both emulsions have been compared in order to produce multiple band holographic reflection gratings, multiplexed on a single layer of material. Three different laser systems were used: He-Cd (442 nm), frequency-doubled Nd-YAG (532 nm) and He-Ne (632.8 nm). High diffraction efficiencies, of over 52\%, were obtained for each of the three bands, with little wavelength shifting. Tests with diffuse objects have been also carried out, studying colour balance for each of the emulsions.

Paper Details

Date Published: 8 June 2005
PDF: 6 pages
Proc. SPIE 5827, Opto-Ireland 2005: Photonic Engineering, (8 June 2005); doi: 10.1117/12.605673
Show Author Affiliations
Manuel Ulibarrena, Univ. Miguel Hernandez (Spain)
Luis Carretero, Univ. Miguel Hernandez (Spain)
Roque Madrigal, Univ. Miguel Hernandez (Spain)
Pablo Acebal, Univ. Miguel Hernandez (Spain)
Salvador Blaya, Univ. Miguel Hernandez (Spain)
Antonio Fimia, Univ. Miguel Hernandez (Spain)

Published in SPIE Proceedings Vol. 5827:
Opto-Ireland 2005: Photonic Engineering
Thomas J. Glynn; John T. Sheridan; Brian W. Bowe; Ronan F. O'Dowd; Gerard M. O'Connor; Aidan J.H. Flanagan; Gerard D. O'Sullivan; Gerald Byrne; Jonathan Magee, Editor(s)

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