phosphorescence emission

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• phosphorescence — [ fɔsfɔresɑ̃s ] n. f. • 1784; de phosphore 1 ♦ Cour. Luminescence du phosphore (⇒ chimioluminescence). 2 ♦ (1861) Phys. Propriété qu ont certains corps d émettre, sous l excitation de radiations (visibles ou non) et sans dégagement sensible de… …   Encyclopédie Universelle

• phosphorescence — ► NOUN 1) light emitted by a substance without combustion or perceptible heat. 2) Physics the emission of radiation in a similar manner to fluorescence but continuing after excitation ceases. DERIVATIVES phosphoresce verb phosphorescent adjective …   English terms dictionary

• phosphorescence — [fäs΄fə res′əns] n. [Fr: see PHOSPHORUS & ESCENCE] 1. a) the condition or property of a substance of giving off a lingering emission of light after exposure to radiant energy, as light or X rays b) the light thus given off 2. a continuing… …   English World dictionary

• Phosphorescence — On nomme phosphorescence le phénomène observé lorsqu une matière continue à émettre de la lumière après avoir été éclairée. Le terme signifie approximativement illuminer comme le phosphore. Le phosphore blanc donne en effet de la lumière dans le… …   Wikipédia en Français

• phosphorescence — /fos feuh res euhns/, n. 1. the property of being luminous at temperatures below incandescence, as from slow oxidation in the case of phosphorus or after exposure to light or other radiation. 2. a luminous appearance resulting from this. 3. any… …   Universalium

• Emission spectrum — The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted by the element s atoms or the compound s molecules when they are returned to a lower energy state. Each element s …   Wikipedia

• phosphorescence — noun /ˌfɒsfəˈɹɛsəns,ˌfɑːsfəˈrɛsəns/ The emission of light without any perceptible heat; the quality of being phosphorescent. We saw a round red sun rise over the City, paint the glassy towers with phosphorescence and, as it brightened and lost… …   Wiktionary

• phosphorescence — The quality or property of emitting light without active combustion or the production of heat, generally as the result of prior exposure to radiation, which persists after the inciting cause is removed. [G. phos, light, + phoros, bearing] * * *… …   Medical dictionary

• phosphorescence — (1) Emission of light following absorption of radiation. Emitted light is of longer wavelength than the exciting radiation and is a result of decay of electrons from the triplet to the ground state. Lasts longer than fluorescence (electron decay… …   Dictionary of molecular biology

• phosphorescence — noun light emitted by a substance without combustion or perceptible heat. ↘Physics the emission of radiation in a similar manner to fluorescence but continuing after excitation ceases. Derivatives phosphoresce verb phosphorescent adjective …   English new terms dictionary

• phosphorescence — n. 1 radiation similar to fluorescence but detectable after excitation ceases. 2 the emission of light without combustion or perceptible heat. Derivatives: phosphoresce v.intr. phosphorescent adj …   Useful english dictionary