Stuttgart 2012 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 8: Dichte Plasmen, Schwerionen- und Laserplasmen

P 8.6: Vortrag

Dienstag, 13. März 2012, 12:15–12:30, V57.02

Sub-femtosecond extremely-intense laser pulse generation — •Matteo Tamburini¹, Christoph H. Keitel¹, Andrea Macchi^2,3, Francesco Pegoraro^3,2, Tatyana V. Liseykina⁴, Naveen Kumar¹, Ashutosh Sharma¹, and Antonino Di Piazza¹ — ¹Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany — ²Istituto Nazionale di Ottica, CNR, Pisa, Italy — ³Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy — ⁴Institut für Physik, Universität Rostock, Wismarsche Strasse 43-45, 18057 Rostock, Germany

At the ultrahigh optical laser intensities expected in the foreseen experiments (I > 10²³ W/cm²), a solid-density thin plasma foil can be quickly accelerated up to relativistic energies by the radiation pressure of an impinging laser pulse [1,2]. The very high electron density of such relativistic foil allows to efficiently reflect a second, counter-propagating and intense laser pulse producing a sub-femtosecond extremely-intense laser pulse.

In this contribution, the Doppler intensity increase of a laser pulse with a counter-propagating relativistic foil is studied with particle-in-cell (PIC) simulations including the effect of the so called radiation reaction force [2].

[1] T. Esirkepov, M. Borghesi, S. V. Bulanov, G. Mourou, T. Tajima, Phys. Rev. Lett. 92, 175003 (2004). [2] M. Tamburini, F. Pegoraro, A. Di Piazza, C. H. Keitel and A. Macchi, New J. Phys. 12, 123005 (2010).