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Proceedings Paper

Toward stable materials for electro-optic modulation and photorefractive applications: the hybrid organic-inorganic approach
Author(s): Lionel Ventelon; Margarita Mladenova; Valerie Alain; Mireille H. Blanchard-Desce; Frederic Chaput; Khalid Lahlil; Jean-Pierre Boilot; Bruno Darracq; Jorge Reyes; Yves Levy
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Paper Abstract

We have developed hybrid organic-inorganic materials based upon the incorporation of nonlinear chromophores in a rigid amorphous inorganic matrix. Functionalized thin films have been prepared using the sol-gel route allowing for mild synthesis conditions. Push-pull chromophores were either incorporated as guests or grafted on a silica based backbone via a spacer. Orientation of the dipolar chromophores within the materials was performed using the Corona technique. By playing on the structure of the push-pull chromophores and on its orientational stability inside the matrix, functionalized materials with large electro-optic coefficients and excellent stability have been designed. By combining both appropriate push-pull chromophores and photoconductors grafted on the matrix, materials showing interesting photorefractive properties can be obtained without requiring the application of an external electric field. Both the presence of a strong internal field in the poled materials and the occurrence of photo-assisted orientational birefringence plays a significant role.

Paper Details

Date Published: 18 May 1999
PDF: 10 pages
Proc. SPIE 3623, Organic Photonic Materials and Devices, (18 May 1999); doi: 10.1117/12.348398
Show Author Affiliations
Lionel Ventelon, Ecole Normale Superieure (France)
Margarita Mladenova, Ecole Normale Superieure (France)
Valerie Alain, Ecole Normale Superieure (France)
Mireille H. Blanchard-Desce, Ecole Normale Superieure (France)
Frederic Chaput, Ecole Polytechnique (France)
Khalid Lahlil, Ecole Polytechnique (France)
Jean-Pierre Boilot, Ecole Polytechnique (France)
Bruno Darracq, Institut d'Optique Theorique et Appliquee (France)
Jorge Reyes, Institut d'Optique Theorique et Appliquee (Mexico)
Yves Levy, Institut d'Optique Theorique et Appliquee (France)

Published in SPIE Proceedings Vol. 3623:
Organic Photonic Materials and Devices
Bernard Kippelen, Editor(s)

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