Eur. Phys. J. B (2018) 91: 106
https://doi.org/10.1140/epjb/e2018-90142-5

Regular Article

Spin active split-ring resonator for THz high harmonic generation^★

Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle/Saale, Germany

^a e-mail: jamal.berakdar@physik.uni-halle.de

Received: 8 March 2018
Received in final form: 5 April 2018
Published online: 11 June 2018

Abstract

We explore theoretically the utilization of laser-driven split, semiconductor-based quantum rings as a source for high harmonic generation in the THz regime. Particular attention is paid to spin-related effects mediated by Rashba-type spin orbital coupling. The frequencies of the fundamental harmonics exhibit different time characteristics related to the charge and spin dynamics offering so a tool to access the spin time evolution by monitoring the time dependent harmonic emission.