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Active mid IR plasmonics using giant magneto resistance

AuthorsArmelles Reig, Gaspar ; Cebollada, Alfonso ; García-Pérez, Fernando ; Torné, Lorena ; Dotor, María Luisa
Issue Date6-Sep-2017
PublisherThe International Society for Optics and Photonics
CitationProceedings of SPIE 10357(X): 103571Q (2017)
AbstractHere 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.
Publisher version (URL)https://doi.org/10.1117/12.2273690
Appears in Collections:(IMN-CNM) Artículos
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