STRUCTURING SCINTILLANT CRYSTALS FOR OPTIMIZING LIGHT EXTRACTION, QUITE PERIODIC STRUCTURE AND USE THEREOF

摘要

Structuring for improving the light extraction in a scintillating crystal of high refractive index, by producing a structure in the form of a network of studs or cones in a high refractive index material deposited on a lateral face and / or upper of said crystal characterized in that said network of pads or cones is periodic at the local scale, with a period of less than 10 times the wavelength λ, photons in the optical medium considered, and aperiodic at a step greater than 30 times the period. The invention further relates to a quasi-periodic structure in the form of pads or cones for a replica on a high refractive index material deposited on said crystal and its use on different faces of said crystal.