Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.
| FactSnippet No. 978,780 |
16 Facts About Fluorescence
2.
Fluorescence has many practical applications, including mineralogy, gemology, medicine, chemical sensors, fluorescent labelling, dyes, biological detectors, cosmic-ray detection, vacuum fluorescent displays, and cathode-ray tubes.
| FactSnippet No. 978,781 |
3.
Fluorescence occurs frequently in nature in some minerals and in many biological forms across all kingdoms of life.
| FactSnippet No. 978,782 |
4.
Fluorescence occurs when an excited molecule, atom, or nanostructure, relaxes to a lower energy state through emission of a photon without a change in electron spin.
| FactSnippet No. 978,783 |
5.
Fluorescence is the emission of a photon accompanying the relaxation of the excited state to the ground state.
| FactSnippet No. 978,784 |
6.
Fluorescence photons are lower in energy compared to the energy of the photons used to generate the excited state .
| FactSnippet No. 978,785 |
7.
Fluorescence lifetime refers to the average time the molecule stays in its excited state before emitting a photon.
| FactSnippet No. 978,786 |
8.
Fluorescence is the phenomenon of absorption of electromagnetic radiation, typically from ultraviolet or visible light, by a molecule and the subsequent emission of a photon of a lower energy .
| FactSnippet No. 978,787 |
9.
Fluorescence can be of any wavelength but is often more significant when emitted photons are in the visible spectrum.
| FactSnippet No. 978,788 |
10.
Fluorescence is highly genotypically and phenotypically variable even within ecosystems, in regards to the wavelengths emitted, the patterns displayed, and the intensity of the fluorescence.
| FactSnippet No. 978,789 |
11.
Fluorescence is simply defined as the absorption of electromagnetic radiation at one wavelength and its reemission at another, lower energy wavelength.
| FactSnippet No. 978,790 |
12.
Fluorescence can occur in organisms in the aphotic zone as a byproduct of that same organism's bioluminescence.
| FactSnippet No. 978,791 |
13.
Fluorescence is widespread among amphibians and has been documented in several families of frogs, salamanders and caecilians, but the extent of it varies greatly.
| FactSnippet No. 978,792 |
14.
Fluorescence was previously suggested to play a role in pollinator attraction it was later found that the visual signal by fluorescence is negligible compared to the visual signal of light reflected by the flower.
| FactSnippet No. 978,793 |
15.
Fluorescence is observed in the atmosphere when the air is under energetic electron bombardment.
| FactSnippet No. 978,794 |
16.
Fluorescence is most effective when there is a larger ratio of atoms at lower energy levels in a Boltzmann distribution.
| FactSnippet No. 978,795 |