Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 6: Correlation dynamics in plasmas and clusters II

A 6.4: Vortrag

Montag, 12. März 2012, 15:30–15:45, V57.01

Plasma formation and ionization dynamics in laser-irradiated droplets — •Tatyana Liseykina and Dieter Bauer — Universität Rostock, Deutschland

We present our recent results on ionization dynamics and plasma formation in intense laser-droplet interaction using three-dimensional, relativistic PIC simulations with ionization included. The numerical simulations show that there exists a broad laser intensity regime for which wavelength-sized targets are not fully ionized. For higher-Z material this applies even to ultra-high intensities. Moreover, the results reveal that there exists an angle of incidence at which oscillating electric fields penetrate into the droplet, ionizing its interior. This leads to the formation of a highly asymmetric density distribution, concentrated mostly in the polarization plane, with the higher charge states not only within the skin layer on the surface but also around a focal point in the droplet interior.