The structuring of crystals scintillating seeking to optimize the extraction of application, which structure is almost periodic and associated use

摘要

The invention relates to structuring for the purpose of improving light extraction in a high-refractive-index scintillation crystal, obtained by producing a polycrystalline network structure in the form of studs or cones in a material with a high refractive index deposited on a lateral and/or upper face of the crystal, and is characterized in that the network of studs or cones is periodic at the local scale, with a period smaller than 10 times the wavelength λ, of the photons in the optical medium under consideration, and aperiodic at a scale greater than 30 times the wavelength. The invention further relates to a quasi-periodic polycrystalline network structure in the form of studs or cones intended for production on a high-refractive index material deposited on the crystal, and to its use on different faces of said crystal.