fluorescence

listen to the pronunciation of fluorescence
English - Turkish
(Oyuncaklar) akarışıl
florışıma
(Tıp) flüoresan
(Fizik) fluoresans
(Biyokimya) ışınırlık
(Biyokimya) ışınım
(Aydınlatma) flüorışıma
flüoresans
flüorışı
yakamoz
floresanlik
(Nükleer Bilimler) floresans
floresan,floresanlık
bazı cisimlerin ışık ve röntgen ışınlarına arzedilince kendiliklerinden çeşitli renklerde ışıklar saçma niteliği
{i} floresan
(Tıp) Bazı cisimlerin ışık ve röntgen ışınlarına arzedilince kendiliklerinden muhtelif renkte ışıklar yayma özelliği, floresans
fluorescent böyle bir niteliğe sahip olan

Related Terms

fluorescence spectroscopy
(Tıp) flüoresans spektroskopisi
fluorescence microscope
floresan mikroskobu
fluorescence angiography
(Tıp) flüoresans anjiyografi
fluorescence body
(Tıp) fluoresan cisimciği
fluorescence indicator
(Kimya) flüoresans indikatörü
fluorescence yield
(Fizik) flüoresans verimi
fluorescence yield
(Nükleer Bilimler) floresans verimi
quenching of fluorescence
(Biyokimya) ışınırlık sönümü
English - English
The light so emitted
The emission of light (or other electromagnetic radiation) by a material when stimulated by the absorption of radiation or of a subatomic particle
The ability of a substance, such as paper or ink, to absorb ultraviolet light waves and reflect them as visible light
It is due not to the difference in the color of a distinct surface layer, but to the power which the substance has of modifying the light incident upon it
{i} emission of electromagnetic radiation (especially as visible light); fluorescent light
The light emitted by fluorescent substances is in general of lower refrangibility than the incident light
The glow induced in a material when bombarded by light Brewster windows of fused silica fluoresce in UV light, increasing absorption of laser radiation and degrading laser mode and output
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. Because re-emission occurs so quickly, the fluorescence ceases as soon as the exciting source is removed, unlike phosphorescence, which persists as an afterglow. A fluorescent lightbulb is coated on the inside with a powder and contains a gas; electricity causes the gas to emit ultraviolet radiation, which then stimulates the tube coating to emit light. The pixels of a television or computer screen fluoresce when electrons from an electron gun strike them. Fluorescence is often used to analyze molecules, and the addition of a fluorescing agent with emissions in the blue region of the spectrum to detergents causes fabrics to appear whiter in sunlight. X-ray fluorescence is used to analyze minerals
Emission of visible light by a substance, such as a mineral, that is currently exposed to ultraviolet light and absorbs radiation from it The light appears in the form of glowing, distinctive colors The emission ends when the exposure to ultraviolet light ends
Fluorescence is the property of certain molecules, or fluorophores, to absorb light at one wavelength and emit a light at a longer wavelength The incident light excites the molecule to a higher level of vibrational energy As the molecule returns to the ground state, the excited fluorophore emits a photon This photon is the fluorescence emission If the molecule returns to the ground state through an intermediate excited triple state, there is a delay in the emission of the photon This delayed photon is termed a phosphorescence emission
Absorption of high energy radiation by a substance and subsequent emission of visible light
The re-emission of light energy at a lower frequency by an absorber illuminated with optical energy The response is usually immediate and on order 1 to 3% of the incident intensity
Electrons absorb energetic radiation (for example ultraviolet light) raising an electron to a higher "Bohr" orbit The energized electron soon drops down in a series of steps through lower energy states and in the process releases photons at lower energy states corresponding to visible light The bright color occurs because the photons are concentrated in a narrow range of wavelengths
The property of a material to emit light when it is exposed to different wavelengths of light or X-rays The presence of fluorescence and its strength may greatly affect the quality of a gemstone
A physical process at which the materials pigments absorb light and re-radiate this light as a different color, giving the color of the material extra light or brilliance
The property possessed by some minerals to emit a glow or light during exposure to ultraviolet light
Emission of secondary light generated by excitation by ultraviolet light, a beta particle or a gamma ray
The emission of electromagnetic radiation following absorption of shorter wave length light
The emission of light from a substance caused by exposure to radiation from an external source
spontaneously emitted radiation which ceases immediately after exitation ceases Comes from electonic transitions in which there is no change in multiplicity
The emission of light of one wavelength after being exposed to light of a different wavelength
A property of molecules to absorb light at one wavelength and emit light at a longer wavelength Flow cytometers detect Fluorescence emission at a 90 degree angle to the exciting light beam
- A term used to describe the light emission given off by excitation of phosphors with Ultra -Violet light
light emitted during absorption of radiation of some other (invisible) wavelength
A property possessed by fluor spar, uranium glass, sulphide of calcium, and many other substances, of glowing without appreciable rise of temperature when exposed to light or to ultra-violet rays, cathode rays, X rays, etc
The emission of light during the absorption of radiation from another source
A term that describes any substance that emits light at a certain wavelength (emission wavelength) when it is illuminated by light of a different wavelength (excitation wavelength)
A glow, usually of a bluish color, that emanates from some diamonds when exposed to ultraviolet light Strong fluorescence is not desirable, but faint fluorescence does not affect the appearance of a diamond
the emission of light of longer wavelength , usually visible, by a substance when irradiated by light of shorter wavelength, usually ultraviolet
That property which some transparent bodies have of producing at their surface, or within their substance, light different in color from the mass of the material, as when green crystals of fluor spar afford blue reflections
The emission of light at one wavelength, the green say, following absorption of light with a much shorter wavelength such as the ultraviolet The UV photon with its energy by ejecting the electron into a high-energy level from which it cascades back down, releasing photons of lower energy and therefore longer wavelengths A material which has this property is called a phosphor
The absorption of light of one wavelength and reemission of it at another wavelength; especially the conversion of ultraviolet into visible light
Light resulting from the action of ultraviolet or other forms of energy on phosphors Fluorescence occurs only while energy is being absorbed by the fluorescing material

Related Terms

fluorescence spectroscopy
An analytical technique that analyzes the fluorescence produced by a sample; fluorometry or spectrofluorimetry
fluorescence microscopy
light microscopy in which the specimen is irradiated at wavelengths that excite fluorochromes
X-ray fluorescence
The emission of electrons from a material when exposed to X-rays
fluorescence

    Hyphenation

    flu·o·res·cence

    Pronunciation

    Etymology

    [ -'re-s&n(t)s ] (noun.) 1852. Coined 1852 by physicist George Stokes from fluorspar + -escence
Favorites
More...
Clear