Photopatterning of hybrid sol-gel glasses for optical and nonlinear optical applications

Mathieu Feuillade; Celine Croutxe-Barghorn; Loic Mager; Christiane P. Carre; Alain F. Fort

doi:10.1117/12.545370

8 September 2004 Photopatterning of hybrid sol-gel glasses for optical and nonlinear optical applications

Mathieu Feuillade, Celine Croutxe-Barghorn, Loic Mager, Christiane P. Carre, Alain F. Fort

Proceedings Volume 5464, Organic Optoelectronics and Photonics; (2004) https://doi.org/10.1117/12.545370
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

The present paper deals with the development of hybrid sol-gel glasses as host matrixes for molecules having quadratic NLO properties. Second order non-linearities can be observed after poling in order to orient these molecules. However, due to their small size, thermal relaxation processes lead to a decrease of the induced orientation with time. Host matrixes showing a high rigidity and corresponding to a final material presenting a reduced free volume should overcome this drawback. An interesting way is to use the rigidity conferred by an organic-inorganic sol-gel matrix that can polymerize under irradiation. Photopatterning of the layer and simultaneous copolymerization of the hybrid precursor with functionalized chromophores should enhance the second order NLO response. The results presented in this paper focus on the formulation and conditioning of laminated hybrid sol-gel layers with a thickness of 100 μm that remain crack-free under condensation and photopolymerization. Results are presented concerning the generation of 1 μm gratings obtained under spatially controlled visible illumination using interference pattern at 514 nm. Diffraction efficiencies up to 90 % are obtained for an incident intensity of 30 mW.cm^-2. The next step is now the incorporation of functionalized chromophores in the hybrid sol-gel matrix leading to a study of NLO properties of the final material.

Citation Download Citation

Mathieu Feuillade, Celine Croutxe-Barghorn, Loic Mager, Christiane P. Carre, and Alain F. Fort "Photopatterning of hybrid sol-gel glasses for optical and nonlinear optical applications", Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); https://doi.org/10.1117/12.545370

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