RT Journal Article T1 A volume holographic sol-gel material with large enhancement of dynamic range by incorporation of high refractive index species A1 Monte Muñoz de la Peña, Francisco del A1 Martínez Matos, Óscar A1 Rodrigo Martín-Romo, José Augusto A1 Calvo Padilla, María Luisa A1 Cheben, Pavel AB Improved 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 refractive index species capable of diffusing from dark to bright fringes of the interference pattern (see figure). PB WILEY-V C H VERLAG GMBH SN 0935-9648 YR 2006 FD 2006-08-04 LK https://hdl.handle.net/20.500.14352/51045 UL https://hdl.handle.net/20.500.14352/51045 LA eng NO © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.This work was supported by MEC under the projects MAT2003-02718 and TIC2002-1846, and by CM under the project S0505/PPQ-0316. We gratefully acknowledge Carmen Munuera and Prof. Carmen Ocal for technical assistance and discussions concerning STM. NO Ministerio de Educación y Ciencia (MEC), España NO Comunidad de Madrid (CAM) DS Docta Complutense RD 12 abr 2025