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Polarization control of emitted THz waves using spintronic emitters with anisotropic magnetic layers & birefringence characterization of Quartz
1 : Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Université de Lille, CNRS : UMR8520, Ecole Centrale de Lille, Université Polytechnique Hauts-de-France
Laboratoire Central – Cité Scientifique – Avenue Poincaré – CS 60069 – 59652 VILLENEUVE D'ASCQ CEDEX -
France
2 : Faculty of Electrical Engineering and Computer Science
Department of Applied Mathematics VSB-Technical University of Ostrava Tr. 17. listopadu 15 CZ 708 33 Ostrava-Poruba Czech Republic -
République tchèque
We demonstrate that spintronic TeraHertz emitters using uni-axial anisotropic FeCo/TbCo2/FeCo ferromagnetic layers allow the polarization control of the THz emitted wave thanks to the Stoner-Wohlfarth coherent rotation of magnetization when submitted to a magnetic field along hard axis. The determination of birefringence parameters of a quartz half-wave plate is described as an application example.
