Control of wavepacket dynamics in mixed alkali metal clusters by optimally shaped fs pulses
Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin,
Corresponding author: a email@example.com
Published online: 15 September 2001
We have performed adaptive feedback optimization of phase-shaped femtosecond laser pulses to control the wavepacket dynamics of small mixed alkali-metal clusters. An optimization algorithm based on Evolutionary Strategies was used to maximize the ion intensities. The optimized pulses for NaK and Na2K converged to pulse trains consisting of numerous peaks. The timing of the elements of the pulse trains corresponds to integer and half integer numbers of the vibrational periods of the molecules, reflecting the wavepacket dynamics in their excited states.
PACS: 82.50.Nd – Control of photochemical reactions / 82.33.Fg – Reactions in clusters / 82.53.Eb – Pump probe studies of photodissociation
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001