Full Two-Photon Correlator
In the start-stop regime, only those pairs consisting of consecutively emitted photons are counted. However, the probability of a photon being emitted by an excited atom approaches zero on the time scale of the fluorescence lifetime T 1. Therefore the start-stop correlator approaches zero on this short time scale and it cannot be used to study the slow relaxation existing in molecular systems.
KeywordsPhoton Pair External Electromagnetic Field Optical Bloch Equation Absorption Line Shape Atomic Dipolar Moment
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