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Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 3: Correlation dynamics in plasmas and clusters I

A 3.2: Hauptvortrag

Montag, 12. März 2012, 11:00–11:30, V47.03

Ignition and dynamics of doped He nanodroplets in intense few-cycle IR pulsesSiva Krishnan1, Lutz Fechner1, Robert Moshammer1, Joachim Ullrich1, Frank Stienkemeier2, •Marcel Mudrich2, Alexey Mikaberidze3, Ulf Saalmann3, Jan-Michael Rost3, Christian Peltz4, and Thomas Fennel41Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Physikalisches Institut, Uni Freiburg, Germany — 3Max-Planck-Institut für Physik komplexer Systeme, Dresden, Germany — 4Physics Institute, University of Rostock, Germany

Doped He nanodroplets are widely used as inert, transparent, and cold matrix for spectroscopy of embedded molecules and clusters [1]. When exposed to strong laser fields, however, a few dopant atoms are sufficient to "ignite" avalanche-like ionization that turns the whole droplet into a strongly absorbing nanoplasma [2,3]. We present experiments and model calculations on the ignition and dynamics of rare gas-doped He nanodroplets illuminated by few-cycle laser pulses.

[1] J. P. Toennies and A. Vilesov, Angew. Chem. Int. Ed. 43, 2622 (2004)

[2] A. Mikaberidze, U. Saalmann, and J. M. Rost, Phys. Rev. Lett. 102, 128102 (2009)

[3] S. R. Krishnan et al., Phys. Rev. Lett. 107, 173402 (2011)

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