Research at IFN Trento

The research activity is focalized on preparation and characterization of dielectric glass-based materials for photonics and optoelectronics. The silica on silicon (SOS) technique is the main stream for optical integration and today is at very early stage of development. The optimization of waveguiding materials could avoid some limits related to both the SOS functionality and to the chemical-physical characteristics of the silica. An interesting contribution could derive from the sol-gel technique which, as proved also by the works published by our research group, allows the development of photonics materials with controlled optical, spectroscopic and structural properties.Other non-conventional materials, such as hybrid structures and IR glasses could extend the photonics applications.

An improvement of our research activity has to be considered regarding:

  • The start of theoretical and experimental study of dielectrics or hybrid PBG Photonic Bandgap Structures

  • Preparation of lossless devices

  • Study of Microresonator-based devices (Whispering Gallery Modes)


    • preparation by sol-gel route and rf sputtering of ultratransparent glass ceramics, planar waveguides deposited on silica-on-silicon and v-SiO2


    • silica-based glasses

    • fluoride-based glasses

    • organic-inorganic systems

    • IR glasses


    • rare-earh ions and metallic nanoparticles -co-doping

    • organic chromophores


    • study of the optical properties by m-line spectroscopy and attenuation measurements and study of the spectroscopic and structural properties by Raman, Brillouin and luminescence spectroscopy

    • modeling of the structure, mechanisms and architecture of the devices


    • integrated optical amplifiers, lossless splitters, for application in the S,C,L telecom bands

    • ultratransparent glassceramic; systems operating in up-conversion

    • PBG on dielectric or hybrid structures

    • active and passive microresonators

    • all-optical chemical sensors