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Darmstadt 2008 – scientific programme

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A: Fachverband Atomphysik

A 16: Atomic Clusters

A 16.7: Talk

Thursday, March 13, 2008, 10:00–10:15, 3D

Optimization of the ionization dynamics of clusters in intense laser fields — •nguyen xuan truong, tilo döppner, sebastian göde, andreas przystawik, josef tiggesbäumker, and karl heinz meiwes-broer — Universität Rostock, Fachbereich Physik, Universitätsplatz 3, 18051 Rostock

Xenon clusters embedded in helium droplets are exposed to intense laser fields. Recent work, ranging from the variation of laser pulse duration over dual pulse excitation to self-learning pulse shaping experiments, has confirmed the strong dependence of the highly charged atomic ions on the temporal pulse shape [1-3]. Expecially, it has been shown in both experiments and simulations that the pulse parameters for a certain charge state are different[1]. In this experiment we optimize the generation of a given atomic charge state using pulse modulator (Dazzler) and a Genetic Algorithm. First results are discussed and corroborated by simulations.

[1] Döppner et al., Phys. Rev. Lett. 94, 013401 (2005).

[2] Moore et al., Appl. Phys. B 80, 101 (2005).

[3] Martchenko et al., Phys. Rev. A 72, 053202 (2005).

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