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Heidelberg 2015 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 31: Poster: Quantum Optics and Photonics II

Q 31.59: Poster

Tuesday, March 24, 2015, 17:00–19:00, C/Foyer

Nonlinear single Compton scattering by a superposition of Volkov waves — •Alessandro Angioi and Antonino Di Piazza — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg

An electron interacting with a laser field can emit radiation; this process is known as Compton scattering. In the presence of a sufficiently strong laser field, the electron can absorb a large average number of laser photons before emitting a high-energy one [1]. Thus, one needs to employ laser-dressed states, called Volkov states, in order to treat correctly the large number of interactions. Nonlinear Compton scattering for a head-on collision between an intense short laser pulse and an electron of definite momentum has been thoroughly investigated in [2]. Here, we study the process of nonlinear Compton scattering with the incoming electron not having a definite momentum, i.e., when it is described by a superposition of Volkov states [3]. In particular, the influence of the electron momentum spread in the emission spectrum is investigated.

[1] A. Di Piazza, C. Müller, K. Z. Hatsagortsyan, and C. H. Keitel, Extremely high-intensity laser interactions with fundamental quantum systems, Rev. Mod. Phys. 84, 1177 (2012).
F. Mackenroth and A. Di Piazza, Nonlinear Compton scattering in ultrashort laser pulses, Phys. Rev. A 83, 032106 (2011).
A. Angioi, F. Mackenroth, and A. Di Piazza, in preparation.

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