Photoluminescence (abbreviated as PL) is light emission from any form of matter after the absorption of photons (electromagnetic radiation). It is one of many forms of luminescence (light emission) and is initiated by photoexcitation (excitation by photons), hence the prefix photo-. Following excitation various relaxation processes typically occur...
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emission of light from a substance as a result of absorption of electromagnetic radiation; such a substance is called a phosphor (q.v.), and the ... [2 related articles]
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luminescence caused by absorption of optical radiation
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photoluminescence, photoluminescent 1. The emission of light from a substance as a result of the absorption of electromagnetic radiation. The frequency of the light emitted is lower than that which is absorbed. 2. Luminescence caused by visible light or by infra-red or ultraviolet radiation. 3. Luminescence caused by exposure to light. In lower ve...
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Luminescence caused by absorption of optical radiation.
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