18 May 1999 Toward stable materials for electro-optic modulation and photorefractive applications: the hybrid organic-inorganic approach
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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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lionel Ventelon, Lionel Ventelon, Margarita Mladenova, Margarita Mladenova, Valerie Alain, Valerie Alain, Mireille H. Blanchard-Desce, Mireille H. Blanchard-Desce, Frederic Chaput, Frederic Chaput, Khalid Lahlil, Khalid Lahlil, Jean-Pierre Boilot, Jean-Pierre Boilot, Bruno Darracq, Bruno Darracq, Jorge Reyes, Jorge Reyes, Yves Levy, Yves Levy, "Toward stable materials for electro-optic modulation and photorefractive applications: the hybrid organic-inorganic approach", Proc. SPIE 3623, Organic Photonic Materials and Devices, (18 May 1999); doi: 10.1117/12.348398; https://doi.org/10.1117/12.348398
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