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Proceedings Paper

Photopolymerizable hybrid sol-gel glasses as holographic recording media
Author(s): M. Feuillade; C. Croutxé-Barghorn; C. Carré; D. J. Lougnot
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Paper Abstract

Photopolymerizable hybrid sol-gel are extremely interesting for optical and photonic applications. They combine the properties of glasses with the possibility of photopatterning the layer at the micrometer scale. The presented results concern the generation of volume gratings created by transmission and reflection using an interferences pattern at 514 nm. In transmission, the diffraction efficiencies were going from 30 % to 95 % (ratio of the diffracted intensity to the diffracted plus transmitted intensities) for a thickness ranging respectively from 40 μm to 100 μm and a spatial frequency of 1000 lines/mm. It corresponded to a refractive index modulation estimated between 4 and 5 x 10-3according to Kogelnik's theory. Reflection gratings with fringe spacing of 0.17 or 0.39 μm were recorded in the material. In normal incidence light beams were highly diffused, whatever the wavelength in the visible range. On the contrary, in oblique incidence, light beams were transmitted through the device without being diffused. This unusual behavior is not yet explained. Applications for information storage can be expected in view of the experimental results, the ease of use and the versatility of this hybrid material.

Paper Details

Date Published: 25 April 2006
PDF: 7 pages
Proc. SPIE 6187, Photon Management II, 618705 (25 April 2006); doi: 10.1117/12.663497
Show Author Affiliations
M. Feuillade, CNRS, UMR 7525, École Nationale Supérieure de Chimie de Mulhouse (France)
C. Croutxé-Barghorn, CNRS, UMR 7525, École Nationale Supérieure de Chimie de Mulhouse (France)
C. Carré, CNRS, UMR 7525, École Nationale Supérieure de Chimie de Mulhouse (France)
D. J. Lougnot, CNRS, UMR 7525, École Nationale Supérieure de Chimie de Mulhouse (France)


Published in SPIE Proceedings Vol. 6187:
Photon Management II
John T. Sheridan; Frank Wyrowski, Editor(s)

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