Journal article
Pulse-train control of photofragmentation at constant field energy
We consider a phaselocked two-pulse sequence applied to photofragmentation in the weak-field limit. The two pulses are not overlapping in time, i.e., the energy of the pulse-train is constant for all time delays. It is shown that the relative yield of excited Br* in the nonadiabatic process: I + Br*←IBr → I + Br, changes as a function of time delay when the two excited wave packets interfere.
The underlying mechanisms are analyzed and the change in the branching ratio as a function of time delay is only a reflection of a changing frequency distribution of the pulse train; the branching ratio does not depend on the detailed pulse shape.
Language: | English |
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Publisher: | American Institute of Physics |
Year: | 2014 |
Pages: | 204301 |
ISSN: | 10897690 and 00219606 |
Types: | Journal article |
DOI: | 10.1063/1.4902061 |
ORCIDs: | Henriksen, Niels Engholm |