Fluorescence - Wikipedia
Fluorescence is one of two kinds of emission of light by a substance that has absorbed light or other electromagnetic radiation. When exposed to ultraviolet radiation, many substances will glow (fluoresce) with colored visible light. The color of the light emitted depends on the chemical composition of the substance.
Fluoresce Definition & Meaning - Merriam-Webster
The meaning of FLUORESCE is to produce, undergo, or exhibit fluorescence.
Fluorescence Definition and Examples - Science Notes and Projects
2023年4月5日 · Fluorescence is a phenomenon where certain materials rapidly (around 10 -8 seconds) emit light when they are exposed to specific types of electromagnetic radiation, typically ultraviolet (UV) light. Fluorescent materials are those that can exhibit this characteristic.
Fluorescence | Emission, Excitation & Photochemistry - Britannica
2024年10月9日 · fluorescence, emission of electromagnetic radiation, usually visible light, caused by excitation of atoms in a material, which then reemit almost immediately (within about 10 −8 seconds). The initial excitation is usually caused by absorption of energy from incident radiation or particles, such as X-rays or electrons.
Fluorescence Definition & Meaning - Merriam-Webster
The meaning of FLUORESCENCE is luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost at once when the incident radiation stops; also : the radiation emitted.
FLUORESCE | English meaning - Cambridge Dictionary
(of a material or a living creature) to absorb light of a short wavelength and produce light of a longer wavelength, particularly in a very bright colour, which only lasts as long as light is being …
Fluorescence - Chemistry LibreTexts
2023年1月30日 · Fluorescence, a type of luminescence, occurs in gas, liquid or solid chemical systems. Fluorescence is brought about by absorption of photons in the singlet ground state promoted to a singlet excited ….