Photopolymerizable hybrid sol-gel glasses as holographic recording media

M. Feuillade; C. Croutxé-Barghorn; C. Carré; D. J. Lougnot

doi:10.1117/12.663497

25 April 2006 Photopolymerizable hybrid sol-gel glasses as holographic recording media

M. Feuillade, C. Croutxé-Barghorn, C. Carré, D. J. Lougnot

Proceedings Volume 6187, Photon Management II; 618705 (2006) https://doi.org/10.1117/12.663497
Event: SPIE Photonics Europe, 2006, Strasbourg, France

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.

Citation Download Citation

M. Feuillade, C. Croutxé-Barghorn, C. Carré, and D. J. Lougnot "Photopolymerizable hybrid sol-gel glasses as holographic recording media", Proc. SPIE 6187, Photon Management II, 618705 (25 April 2006); https://doi.org/10.1117/12.663497

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