Persistent emission of light following exposure to and removal of incident radiation.
Emission of visible light by a substance, such as a mineral, that is exposed to ultraviolet light and absorbs radiation from it. The light appears in the form of glowing, distinctive colors. The emission continues after the exposure to ultraviolet light ends.
a fluorescence that persists after the bombarding radiation has ceased
relaxation route producing radiation from a long-lived (triplet) state (10 microseconds to hours).
Some diamonds and other gemstones and minerals continue to glow or emit visible light for a period of time after exposure to visible, ultra-violet or other light, after the light source has been removed.
The emission of light due to phosphorus contamination in a variety of product. It is longer lived than fluorescence and can interfere with fluorescence detection by increasing the background counts.
property held by some materials of absorbing light of one wavelength and emitting it as light of a different wavelength.
Emission of light that persists for a noticeable time after the removal of the excitation source.
Phosphorescence is a specific type of photoluminescence related to fluorescence. Unlike fluorescence, a phosphorescent material does not immediately re-emit the radiation it absorbs. The slower time scales of the re-emission are associated with "forbidden" energy state transitions in quantum mechanics.
