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<p>wavelength, to the concentration of fluorophore in solution.<br/>
* <b>Quantum yield</b>: efficiency of the energy transferred from incident light to emitted fluorescence (the number of emitted photons per absorbed photons).<br/>
* <b>Lifetime</b> (in picoseconds): duration of the excited state of a fluorophore before returning to its ground state. It refers to the time taken for a population of excited fluorophores to decay to 1/<a href="page.php?w=E_%28mathematical_constant%29">e</a> (?0.368) of the original amount.<br/>
* <b>Stokes shift</b>:</p><p>
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