%0 Book Section %T Study of holographic diffraction gratings implemented in photopolymerizable glasses incorporating ionic liquid publisher Society of Photo-Optical Instrumentation Engineers (SPIE) %D 2011 %U 978-0-81948-575-5 %@ https://hdl.handle.net/20.500.14352/45511 %X In 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 which incorporates a High Refractive Index Species (HRIS), already developed in our group GICO-UCM. The new types of photopolymerizable glasses under study incorporate ionic liquid (IL). We present a comparative study, showing distinctive behaviors for each photopolymerizable glass class, and determining particular features for various ranges of applications. %~