Dresden 2011 – wissenschaftliches Programm

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SYAP: Intersectional Symposium Attosecond Physics: Atoms, Molecules and Condensed Matter

SYAP 1: Attosecond Physics: Atoms, Molecules, Condensed Matter

SYAP 1.1: Hauptvortrag

Montag, 14. März 2011, 10:30–11:00, HSZ 01

Observing Intra-atomic Electron Correlation by Tunnelling and Re-collision — •Paul Corkum — Joint Attosecond Science Lab, 100 Sussex Drive, Ottawa, ON. Canada

Laser induced tunnelling imposes two filters on a quantum system * a directional filter in momentum space and an ionization potential filter. Together they allow us to preferentially address specific orbitals or to launch valence electron wave packets in the ion. Using sequential ionization, we show how circular polarized light can image electron correlations in rare gas atoms and HCl [1]

In linear polarized light the tunnelled electron re-collides. During the re-collision it can probe its correlated hole through high harmonic generation [2]. If the hole moves the dynamics shows up in the structure of the high harmonic spectrum. We show how attosecond dynamics can be observed experimentally.

[1] A. Fleischer, H. Worner, D.M. Villeneuve A. Staudte and P. B. Corkum, *Probing Electron Correlations by Laser-Induced Tunnel Ionization* submitted for publication.

[2] O. Smirnova, Y. Mairesse, S. Patchkovskii, N. Dudovich, D. M. Villeneuve, P. B. Corkum, and M. Y. Ivanov, *Probing Inner Orbitals and Electron Tunnelling in Molecules with High Harmonic Interferometer*, Nature, 460, 972 (2009).