Hannover 2013 – scientific programme
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A: Fachverband Atomphysik
A 27: Visualizing Ultrafast Dynamics in atoms, molecules, and clusters
A 27.1: Invited Talk
Wednesday, March 20, 2013, 14:00–14:30, E 415
Electron emission from nanospheres in strong, few-cycle laser fields — •Matthias Kling1,2, Frederik Süßmann1, Sergey Zherebtsov1, Johannes Stierle1, Jürgen Plenge3, Eckart Rühl3, Lennart Seifert4, and Thomas Fennel4 — 1Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany — 2Kansas-State University, Manhattan, KS66506, USA — 3Freie Universität Berlin, 14195 Berlin, Germany — 4Universität Rostock, 18051 Rostock, Germany
The interaction of nanometer sized materials with strong laser fields opens new avenues to control collective electron motion with attosecond precision and on nanometer length scales. Recent studies will be highlighted, where the electron emission from spherical nanoparticles of various dielectric and semiconducting materials in strong, few-cycle laser fields was explored. By using a beam of isolated nanoparticles, the target is replaced after every laser shot and we can explore the regime near, at and beyond the material damage threshold. The extremely short pulse duration of only a few cycles in our studies ensures that the electron dynamics responsible for the observed phenomena occurs before any nuclear dynamics. We have furthermore explored the effect of the carrier-envelope phase on the electron emission and studied propagation effects in large silica nanoparticles. The potential attosecond observation of the collective dynamics has been explored theoretically and will be outlined.