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Álvarez Herrero, Alberto ; López Heredero, Raquel ; Levy, David ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 2001-02-01The variation of the optical properties of porous Vycor glass (Corning, Model 7930) under different relative-humidity conditions was studied. The adsorption of water into the glass pores was investigated with spectroscopic ellipsometry. The chan[...]texto impreso
Álvarez Herrero, Alberto ; Guerrero Padrón, Héctor ; Levy, David ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 2002-11-01An optical method to determine the nanostructure and the morphology of porous thin films is presented. This procedure is based on the response of a side-polished optical fiber with the film under study, when an adsorption-desorption cycle is car[...]texto impreso
Ramos Zapata, Gonzalo ; Belenguer Dávila, Tomás ; Monte Muñoz de la Peña, Francisco de ; Levy, David ; Bernabeu Martínez, Eusebio | Amer Chemical Soc | 2003-01-09In this work, we describe the preparation of a novel photoconductive sol?gel material based on an organic/inorganic interpenetrating network (IPN). The composition of the sol?gel photoconductive material mimics the well-known polymeric one based[...]texto impreso
Álvarez Herrero, Alberto ; Ramos Zapata, Gonzalo ; Monte Muñoz de la Peña, Francisco del ; Levy, David ; Bernabeu Martínez, Eusebio | Elsevier Science SA | 2004-05-01High refractive index TiO_2–SiO_2 thin films were prepared by the sol–gel method and the optical properties were characterized by spectroscopic ellipsometry. The results of the optical analysis were related with the TiO_2–SiO_2 molar ratio of th[...]
