How to estimate the interaction time of Raman scattering?

linqy
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Maybe we could use
(1) uncertainty principle
$\Delta E \Delta t = \hbar$
and get $\Delta E$ from the spetrum.
Or
(2) forced vibration model, then get the damping factor $\gamma$，
and get $Delta t = frac{1}{\gamma}$
 
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