Fluorescence
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 Fluorescent minerals emit visible light when exposed to ultraviolet light |
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. However, when the absorbed electromagnetic radiation is intense, it is possible for one electron to absorb two photons; this two-photon absorption can lead to emission of radiation having a shorter wavelength than the absorbed radiation. The emitted radiation may also be of the same wavelength as the absorbed radiation, termed "resonance fluorescence".
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- Related: Black light, Blacklight paint, Evos microscope, Fluorescence in plants, Fluorescence spectroscopy, Fluorescent lamp, Fluorescent multilayer card, Fluorescent Multilayer Disc, Fluorometer, High-visibility clothing, Laser-induced fluorescence, Mössbauer effect, Organic light-emitting diode, Phosphorescence, Phosphor thermometry, Spectroscopy, Two-photon absorption, X-ray fluorescence
| Fluorophores.org Fluorophores.org www.fluorophores.org - Web |
| FSU.edu FSU.edu micro.magnet.fsu.edu/.../fluorescenceintro.html - Web |
| "A nano-history of fluorescence" lecture by David ... "A nano-history of fluorescence" lecture by David Jameson www.lfd.uci.edu/workshop/2008/ - Web |
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| Excitation and emission spectra of various fluores... Excitation and emission spectra of various fluorescent dyes www.mcb.arizona.edu/IPC/spectra_page.htm - Web |
| Database of fluorescent minerals with pictures, ac... Database of fluorescent minerals with pictures, activators and spectra (fluomin.org) www.fluomin.org/uk/list.php - Web |
