SAMOP 2021 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 7: Attosecond physics
A 7.3: Poster
Dienstag, 21. September 2021, 16:30–18:30, P
Classical model for collisional delays in attosecond streaking at solids — •Elisabeth A. Herzig1, Lennart Seiffert1, and Thomas Fennel1,2 — 1Universität Rostock — 2MBI Berlin
Scattering of electrons in solids is at the heart of laser nanomachining, light-driven electronics, and radiation damage. Accurate theoretical predictions of the underlying dynamics require precise knowledge of low-energy electron transport involving elastic and inelastic collisions. Recently, real-time access to electron scattering in dielectric nanoparticles via attosecond streaking has been reported [1,2]. Semiclassical transport simulations [3] enabled to identify that the presence of the field inside of a dielectric nanosphere cancels the influence of elastic scattering, enabling selective characterization of the inelastic scattering time [1]. However, so far a clear picture of the underlying physics was lacking. Here, we present an intuitive classical model for the prediction of collision-induced contributions to the delays in attosecond streaking at solids.
[1] L. Seiffert et al., Nat. Phys. 13, 766-770 (2017)
[2] Q. Liu et al., J. Opt. 20, 024002 (2018)
[3] F. Süßmann et al., Nat. Commun. 6, 7944 (2015)