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Definition of "fluorescence" |
property of many substances, of absorbing light of one wavelength (or colour) and emitting light of another wavelength (or colour). / emission of light from an electronically excited state thatwas produced by absorption of radiation with a wavelength shorter than the emitted light. Fluorescence emission is a quantum mechanically allowed transition between electronic levels of the same spin state, resulting in emission of light with a very short lifetime, typically nanoseconds. |
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