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Bruno Darracq
Researcher at Centre national de la recherche scientifique
Publications - 23
Citations - 498
Bruno Darracq is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Photorefractive effect & Chromophore. The author has an hindex of 11, co-authored 23 publications receiving 492 citations.
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Journal ArticleDOI
Large and Stable Refractive Index Change in Photochromic Hybrid Materials
John Biteau,Frederic Chaput,Khalid Lahlil,Jean-Pierre Boilot,Gerasimos M. Tsivgoulis,Jean-Marie Lehn,Bruno Darracq,Chantal Marois,Yves Levy +8 more
TL;DR: In this article, a transparent photochromic hybrid organic−inorganic materials in which the photo-chromic group belongs to the polymer network were developed in the form of thin films a few microns thick.
Journal ArticleDOI
Photoinscription of Surface Relief Gratings on Azo‐Hybrid Gels
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Stable photorefractive memory effect in sol-gel materials
Bruno Darracq,Michael Canva,Frederic Chaput,Jean-Pierre Boilot,Didier Riehl,Yves Levy,Alain Brun +6 more
TL;DR: In this paper, the synthesis and optical characterization of a photorefractive sol-gel material which contains nonlinear azo chromophore and carbazole charge transporting molecules was reported.
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Effect of chromophore-chromophore electrostatic interactions in the NLO response of functionalized organic-inorganic sol-gel materials
Jorge-Alejandro Reyes-Esqueda,Jorge-Alejandro Reyes-Esqueda,Bruno Darracq,Jorge A. García-Macedo,Michael Canva,Mireille Blanchard-Desce,Frederic Chaput,Khalid Lahlil,Jean-Pierre Boilot,Alain Brun,Yves Levy +10 more
TL;DR: In this paper, the authors used the sol-gel route to prepare hybrid organic-inorganic thin films with different NLO chromophores grafted into the skeleton matrix, and obtained a r 33 coefficient around 15 pm/V at 633 nm for the classical DR1 azo-chromophore and r 33 around 50 pm/v at 831 nm for a new optimized chromophore structure.
Journal ArticleDOI
Novel photorefractive sol-gel materials
Bruno Darracq,Frederic Chaput,Khalid Lahlil,Jean-Pierre Boilot,Yves Levy,Valérie Alain,Lionel Ventelon,Mireille Blanchard-Desce +7 more
TL;DR: In this article, the authors developed new photorefractive media based on hybrid organic-inorganic materials containing a charge transporting (CT) molecule either as side-chain or main-chain substituents on the silica backbone.