Fluorescence

Fluorescence is the phenomenon of light emission from a solid body under the influence of ultraviolet or x-ray radiation in the visible spectrum. After the cessation of exposure to the beam, the emission of light also stops - the so-called “afterglow” occurs. In English-language literature, the term phosphorescence is used to denote a similar phenomenon (from the Latin Phos - luminous, prophetic). Full name. work was carried out aimed at studying the phenomenon of fluorescence in substances of various states of aggregation. The principle of the method is to obtain a spectrum after a slight exposure of the substance to short-wavelength

Fluorescence is a phenomenon of natural or artificial origin, the essence of which is the glow of objects under the influence of a certain external radiation. Natural causes of fluorescence include lightning, auroras, some fabric dyes, and some animals. The invention of the fluoroscope made it possible to observe this phenomenon in everyday life.

Fluorescents are the names of substances that can glow when exposed to external energy. The process is based on a change in electronic bonds in a molecule of a substance when the energy of a light quantum, for example, a red or green photon, is absorbed. This change in electronic state then causes the emission of a photon with radiation in the blue part of the spectrum. This phenomenon leads to the presence of pronounced colors, which is why such a substance is called a phosphor. Phosphor is a fairly large class of substances, which includes not only solids, but also liquids, gases, vapors and others. Chemists distinguish the following types of fluorescence: - Organic fluorescence. Mostly natural dyes, which are widely used in biology, medicine, and chemical processes, make sense. - Anemic nature. Representatives: mineral uraninite, tourmaline, sodalite, etc. Reddish-pink shades of glow are characteristic. - Fluorescent ability can be safely attributed to the chemical element barium. Among the properties of barium one can mention luminescence.