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Proceedings Paper

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

Paper Details

Date Published: 8 September 2004
PDF: 7 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.545370
Show Author Affiliations
Mathieu Feuillade, Ecole Nationale Superieure de Chimie de Mulhouse (France)
Celine Croutxe-Barghorn, Ecole Nationale Superieure de Chimie de Mulhouse (France)
Loic Mager, Institut de Physique et Chimie des Materiaux de Strasbourg, CNRS (France)
Christiane P. Carre, Ecole Nationale Superieure de Chimie de Mulhouse (France)
Alain F. Fort, Institut de Physique et Chimie des Materiaux de Strasbourg, CNRS (France)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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