Düsseldorf 2007 – scientific programme

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A: Fachverband Atomphysik

A 22: Poster II - Atomic clusters

A 22.10: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster B

Optimal control of the ionization dynamics of the intense fs laser-cluster interaction — nguyen xuan truong, tilo döppner, sebastian göde, •robert irsig, andreas przystawik, josef tiggesbäumker, and karl-heinz meiwes-broer — Universität Rostock, Fachbereich Physik, Universitätsplatz 3, 18051 Rostock

Recent experiments on intense fs laser-cluster interactions have confirmed the dependence of the charging processes on the temporal pulse shape and the laser intensity [1,2]. In this studies we have extended our recent work by modulating both amplitude and phase of the laser pulses in order to optimize the charging process. For this purpose an acousto-optic programmable dispersive filter (Dazzler) is used. The laser pulse resulting from the optimization procedure is fully characterized by frequency-resolved optical gating technique (FROG). First results on metal clusters embedded on helium nanodroplets are presented.

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

[2] T. Döppner et al., Eur. Phys. J. D, submitted.