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PL: Photoluminescence (Read 1964 times)
Gerrit-Jan Linker
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PL: Photoluminescence
11.07.12 at 22:04:29
 
PL: Photoluminescence
 
PL, Photoluminescence is a process in which a substance absorbs photons and then re-radiates photons.  
 
This can be described as an excitation to a higher energy state and then a return to a lower energy state accompanied by the emission of a photon.  
 
This is one of many forms of luminescence (light emission) and is distinguished by photoexcitation (excitation by photons), hence the prefix photo-.
 
See also:
Luminescence - Spontaneous Emission  
http://www.oraxcel.com/cgi-bin/yabb2/YaBB.pl?num=1342029385/0#0
 
Source:
http://en.wikipedia.org/wiki/Photoluminescence
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« Last Edit: 11.07.12 at 22:05:47 by Gerrit-Jan Linker »  

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