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Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del | American Institute of Physics | 2007-10-01We report results on the temporal evolution of the diffraction efficiency of volume holographic gratings recorded in a photopolymer glass incorporating Zr-based high refractive index species (HRIS) at molecular level. We record high spatial freq[...]texto impreso
Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del ; Rodrigo Martín-Romo, José Augusto | American Physical Society | 2006-08-25We report observations of periodic oscillatory behavior of the angular selectivity, near the Bragg angle, in volume holographic gratings recorded in a new photopolymerizable glass with high refractive index modulation. We have detected the prese[...]texto impreso
Martínez Matos, Óscar ; Cheben, Pavel ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto ; Monte Muñoz de la Peña, Francisco del | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2007We report recent results obtained with volume holographic gratings recorded in a new photopolymerisable glass modified with high refractive index species at molecular level. Various not previously observed performances have been achieved for dif[...]texto impreso
Villafranca Velasco, Aitor ; Hernández Garay, María de la Paz ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del | American Institute of Physics | 2011-03-01Three different holographic photomaterials belonging to the class of photopolymerizable glasses have been synthesized using sol-gel techniques, and characterized with the purpose of a comparative study. Their behavior is analyzed in terms of ach[...]texto impreso
Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Rodrigo Martín-Romo, José Augusto ; Monte Muñoz de la Peña, Francisco del | Maik Nauka, Interperiodica, Springer-Verlag | 2007-12The advances in the sol-gel holographic recording materials, namely in the photopolymerizable compositions and photorefractive glasses, are reviewed. A new sol-gel holographic material is also discussed that exploits diffusion of a high-refracti[...]texto impreso
Villafranca Velasco, Aitor ; Hernández Garay, María de la Paz ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2011In this work we analyze the optical quality, performance, and recording mechanism of holographic diffraction gratings recorded in photopolymerizable sol-gel glasses. These classes of holographic photomaterials have various compositions, one of w[...]texto impreso
Monte Muñoz de la Peña, Francisco del ; Martínez Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa ; Cheben, Pavel | Wiley-V C H Verlag Gmbh | 2006-08-04Improved performance of volume holographic sol-gel materials-refractive index modulations in the 10^2 range, diffraction efficiencies near 100 %, and low levels of noise scattering-are reported that arise from the incorporation of Zr-based high [...]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[...]
