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Polarization control of emitted THz waves using spintronic emitters with anisotropic magnetic layers & birefringence characterization of Quartz

Archive ouverte : Communication dans un congrès

Lezier, Geoffrey | Kolejak, Pierre | Lampin, Jean-Francois | Postava, Kamil | Vanwolleghem, Mathias | Tiercelin, Nicolas

Edité par HAL CCSD ; IEEE

International audience. We demonstrate that spintronic TeraHertz emitters using uni-axial anisotropic FeCo/TbCo 2 /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.

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