Translator Disclaimer
13 October 1994 Optical properties of push-pull azo groups covalently bonded to a silica-gel matrix
Author Affiliations +
The sol-gel synthesis of organic-inorganic composite materials with push pull azobenzene molecules covalently bonded to the silica matrix is used for fabricating low cost optical channel waveguides for integrated optics applications and optical information storage. The refractive index change is obtained through the orientation of the nonlinear active molecules induced by a trans-cis-trans photoisomerization process. The index change and anisotropy are created by illuminating the thin film at a wavelength located inside the absorption band of the chromophores. At short irradiation times, the induced birefringence and dichroism are the consequence of the usual reorientation phenomenon due to the trans-cis-trans isomerization. At long pumping times, a photobleaching is observed corresponding to an irreversible transformation in the silica matrix. This property is used to write channel waveguides and gratings.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frederic Chaput, Jean-Pierre Boilot, Didier Riehl, and Yves Levy "Optical properties of push-pull azo groups covalently bonded to a silica-gel matrix", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994);


Au NPs immersed in sol gel matrix nonlinear optical...
Proceedings of SPIE (September 26 2016)
Prism coupler and microscopic investigations of DNA films
Proceedings of SPIE (September 10 2007)
Recording reversible patterns in polymer lightguides
Proceedings of SPIE (August 01 1990)
Holographic gratings in hybrid sol-gel films
Proceedings of SPIE (August 08 2003)
Photoinduced anisotropy in bacteriorhodopsin films
Proceedings of SPIE (October 09 1998)

Back to Top