Active mid IR plasmonics using giant magneto resistance

Gaspar Armelles; Alfonso Cebollada; Fernando García; Lorena Torné; María Luisa Dotor

doi:10.1117/12.2273690

6 September 2017 Active mid IR plasmonics using giant magneto resistance

Gaspar Armelles, Alfonso Cebollada, Fernando García, Lorena Torné, María Luisa Dotor

Proceedings Volume 10357, Spintronics X; 103571Q (2017) https://doi.org/10.1117/12.2273690
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

Abstract

Here we present our proposal and initial results on the magnetic field control of plasmon resonances in the mid IR region by the use of the Magneto-Refractive (MR) effect, i.e., a change in the optical properties of the system by magnetic field controlled electrical resistivity. For this we select a Giant Magneto Resistance model system (a Au/Permalloy multilayer), for which changes in resisitivity of the order of 10% by the application of small (of the order of 20 Oe) magnetic fields have been reported. The experiments are carried out in a dedicated magnetic field FTIR (M-FTIR) spectrometer.

Citation Download Citation

Gaspar Armelles, Alfonso Cebollada, Fernando García, Lorena Torné, and María Luisa Dotor "Active mid IR plasmonics using giant magneto resistance", Proc. SPIE 10357, Spintronics X, 103571Q (6 September 2017); https://doi.org/10.1117/12.2273690

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