FIG. 2.

Pulse sequence for the stimulated Raman experiment considered here. The arrival time of the electronically resonant pulse ${\mathit{k}}_1$ defines the time origin (τ = 0) and launches the vibrational dynamics. The electronically off-resonant pulse pair, ${\mathit{k}}_2$ and ${\mathit{k}}_3$, arrive at the sample at τ = T.