Abstract
<title>Abstract</title> <p>The energy, spectral and temporal characteristics of corundum (a-Al2O3) with various activators in different optical regions were studied. The elements that can be part of optically active crystals and those elements that can create new exciton-photon interactions leading to new transitions and energy transformation were determined. The percentage of impurities in these crystals and the percentage of this mixture at which the maximum conversion of optical radiation will occur were determined, absorption and luminescence spectra were obtained. Luminescence measurements were carried out at several constant frequencies of corundum irradiation and at different orientations of the crystal. Luminescence is the most important characteristic of crystals in the development of optical converters. The studies of these crystals led to the conclusion that corundum can be used as a photoconverter not only in the UV range, but also for creating sensitive detectors in the VUV and IR wavelength ranges. To modify the electrophysical properties of the single crystal, corundum was irradiated with accelerated ions of various elements to create active elements with precisely specified dimensions in the crystal.</p>