CHIRPED PULSE CONTROL OF CSI FRAGMENTATION - AN EXPERIMENTAL POSSIBILITY

The strength of chirped pulse optimal control as an experimental possi bility is demonstrated in this paper. The suggested experiment is a pu mp-dump experiment that first creates an unstable - dissociating - mol ecule on a repulsive level and then stops fragmentation. The experimen t is envisioned by using a start pulse (a doubled green pulse) that in verts the population. The control pulse - that stops the fragmentation - is the chirp optimized green pulse itself. Optimization includes se cond and third order chirp expansion terms. Optimization is made for t he weak and strong field limits with the help of the simulated anneali ng method. Weak field optimization shows the expected red chirp result s. Strong field optimization, on the other hand, gives rise to blue ch irp as optimal solution. It is argued, that the blue chirp is the cons equence of the need for locking the upper and lower state wavefunction s for efficient population inversion.