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Using ultrafast pump–probe spectroscopy, we observe quantum beats between rovibrational states located on the uncoupled bound G1Πg+ and F1Σg+ electronic curves of Li 2 . From a pure launch state (A1Σu+vA,JA=11,28), a wave packet is prepared using the output from a visible ultrafast optical parametric amplifier and is photoionized by an 800nm ultrafast pulse. As the OPA wavelength is scanned,...
Time shifting (up to a global arbitrary phase) the dynamics of molecular wave packets, i.e, |Ψ(t)〉→|Ψ(t−t shift )〉, is demonstrated using a high degree of state selective coherent phase control with shaped femtosecond laser pulses. The benchmark system for the present work is the lithium dimer molecule. The phase-tailored Li 2 wave packets are composed of several rovibrational states...
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