Polarization-controlled emission from spintronic emitter stacks

Dominik Sokoluk; Jan Kappa; Laura Scheuer; Evangelos Th. Papaioannou; Marco Rahm

doi:10.1117/12.2662386

13 March 2023 Polarization-controlled emission from spintronic emitter stacks

Dominik Sokoluk, Jan Kappa, Laura Scheuer, Evangelos Th. Papaioannou, Marco Rahm

Proceedings Volume PC12420, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI; PC1242009 (2023) https://doi.org/10.1117/12.2662386
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We report polarization-controlled emission from an emitter stack that consists of two spintronic Fe/Pt terahertz emitters. Since the magnetization in the thin iron film of both emitters stays aligned with the easy magnetization axis after removal of an external magnetic bias field, the polarization of the emitted fields from both emitters can be independently controlled by rotation of the two emitters relative to each other. We studied the dependence of the amplitude and polarization of the emitted terahertz field from the stack on the relative rotation of the emitters and the gap width between the emitters in the stack.

Conference Presentation

Citation Download Citation

Dominik Sokoluk, Jan Kappa, Laura Scheuer, Evangelos Th. Papaioannou, and Marco Rahm "Polarization-controlled emission from spintronic emitter stacks", Proc. SPIE PC12420, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI, PC1242009 (13 March 2023); https://doi.org/10.1117/12.2662386

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