Modern luminescence spectroscopy of minerals and materials / Современная люминесцентная спектроскопия минералов и материалов

Spectroscopy is the study of the interaction of electromagnetic radiation with the matter. There are three aspects of the spectroscopic measurement: irradiation of a sample with electromagnetic radiation; measurement of the absorption, spontaneous emission and scattering (Rayleigh elastic scattering, Raman inelastic scattering) from the sample; and analysis and interpretation of these measurements. The main subject of our book is spontaneous luminescence of natural minerals. We have used the term luminescence, which is the general term of the phenomenon. Luminescence may be subdivided to the fast fluorescence with spin-allowed transition and slow phosphorescence with spin-forbidden transition. Afterglow may be added, which is related to emission after trapping of an electron elsewhere. <...>