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26 September 2016 Au NPs immersed in sol-gel matrix: nonlinear optical characterization
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Physical and optical characterization of thin films doped with Au Nanoparticles onto a silica substrate is presented. Films were prepared through sol-gel process, by using Au nanoparticles immersed in lipoic acid as dopant by means of hydrolysis and acid catalyzed reaction of tetraethyl-orthosilicate. The surface was characterized by SEM and AFM microscopies. Z-scan technique was used to measure nonlinear optical properties as nonlinear absorption and refraction indexes, using two different wavelengths. At 633 nm it was possible to observe nonlinear absorption only but at 514 nm both nonlinear properties were observed.
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Angélica Aguilera-Zavala, Mónica Trejo-Durán, Orlando Ortiz-Jiménez, Delfino Cornejo-Monroy, Israel Severiano-Carrillo, and Edgar Alvarado-Méndez "Au NPs immersed in sol-gel matrix: nonlinear optical characterization", Proc. SPIE 9929, Nanostructured Thin Films IX, 99291F (26 September 2016);

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