Sep 18 – 24, 2022
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

QED Effects at Grazing Incidence on Solid-State-Targets

Sep 20, 2022, 7:20 PM
Sala Elena - Hotel Hermitage

Sala Elena - Hotel Hermitage

Poster (student) Poster Session


Mr Marko Filipovic (Heinrich-Heine-Universität Düsseldorf)


New laser facilities will reach intensities of $10^{23} \text{W cm}^{-2}$. This advance enables novel experimental setups in the study of laser-plasma interaction. In these setups with extreme fields quantum electrodynamic (QED) effects like photon emission via non-linear Compton scattering and Breit-Wheeler pair production become important.

We study high-intensity lasers grazing the surface of a solid-state target by two-dimensional particle-in-cell simulations with QED effects included. The two laser beams collide at the target surface at a grazing angle. Due to the fields near the target surface electrons are extracted and accelerated. Finally, the extracted electrons collide with the counter-propagating laser, which triggers many QED effects and leads to a QED cascade under a sufficient laser intensity. Here, the processes are studied for various laser intensities and angle of incidence and finally compared to a seeded vacuum cascade. Our results show that the proposed target can yield many order of magnitude more secondary particles and develop a QED cascade at lower laser intensities than the seeded vacuum alone.

Primary authors

Prof. Alexander Pukhov (Heinrich-Heine-Universität Düsseldorf) Mr Marko Filipovic (Heinrich-Heine-Universität Düsseldorf)

Presentation materials