Hannover 2010 – wissenschaftliches Programm

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K: Fachverband Kurzzeitphysik

K 6: Poster

K 6.9: Poster

Donnerstag, 11. März 2010, 16:30–19:00, Lichthof

Determining the Carrier-Envelope Phase of short intense laser pulses and Radiation Reaction below the Radiation-Dominated Regime — •Felix Mackenroth, Antonino Di Piazza, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)

The electromagnetic radiation emitted by an ultrarelativistic accelerated electron is sensitive to the precise shape of the field driving the electron. We show that the angular distribution of the photons emitted by an electron via multiphoton Compton scattering off a strong, short laser pulse provides a direct way of determining the Carrier-Envelope Phase of the driving laser field [1]. The presented calculations take into account relativistic as well as quantum effects.
We also consider the classical effect of Thomson scattering and present a scenario in which the laser pulse on average passes a momentum to the electron comparable to the one initially prepared. This configuration turns out to be far more sensitive to Radiation Reaction (RR) than previously studied settings. As a consequence, it will be possible to experimentally investigate RR with currently available laser systems [2].
[1] F. Mackenroth, A. Di Piazza, and C. H. Keitel, in preparation.
[2] A. Di Piazza, K. Z. Hatsagortsyan, and C. H. Keitel, Phys. Rev. Lett. 102, 254802 (2009).