Luminescence - Wikipedia
Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment. [1] A luminescent object emits …
Luminescence | Definition, Examples, Types, & Facts | Britannica
luminescence, emission of light by certain materials when they are relatively cool. It is in contrast to light emitted from incandescent bodies, such as burning wood or coal, molten iron, and wire …
Luminescence Definition and Examples - Science Notes and Projects
2023年5月14日 · Luminescence is emission of light without appreciable heat. Luminescence is a process by which a substance emits light without becoming noticeably heated. The term …
Luminescence, fluorescence, and phosphorescence - Explain ...
2023年5月27日 · What is luminescence? What's the difference between luminescence, fluorescence, and phosphorescence? What other types of luminescence are there? Lights in …
Luminescence Definition & Meaning - Merriam-Webster
The meaning of LUMINESCENCE is the low-temperature emission of light (as by a chemical or physiological process); also : light produced by luminescence. How to use luminescence in a …
Luminescence - Encyclopedia.com
2018年5月14日 · Luminescence is the generation of light without heat. There are two principal varieties of luminescence, fluorescence and phosphorescence, distinguished by the delay in …
luminescence – cold light - RP Photonics
Luminescence (from Latin luminare = to light up or illuminate) is a collective term for different phenomena where a substance emits light without being strongly heated, i.e. the emission is …
Luminescence - an overview | ScienceDirect Topics
Luminescence is defined as the phenomenon in which the electronic state of a substance is excited by some kind of external energy and the excitation energy is given off in the form of …
luminescence summary | Britannica
luminescence, Emission of light by an excited material through a process not caused solely by a rise in temperature. The excitation is usually achieved with ultraviolet radiation, X-rays, …
Luminescence physics - Britannica
The excitation energy is transferred to the electrons responsible for luminescence, which jump from their ground-state energy level to a level of higher energy. The energy levels that …