Development of Novel Magneto-plasmonic Sensors of Interest in Space Applications
نویسندگان
چکیده
Technological advances in sensor designs (e.g. increased sensitivity) may be achieved by combining plasmonic and magneto-optical materials, thus leading to magneto-plasmonic systems. Noble metal-ferromagnetic systems, such as Au/Co/Au trilayers and Au/FePd bilayers, are candidates for magneto-plasmonic systems, where surface plasmon polaritons (SPPs) may be modulated by externally applied magnetic fields. Optimization of these layered systems has been investigated leading to a large relative variation in the transverse magneto-optical Kerr effect (TMOKE) signal of 320% in the Au/Co/Au trilayers. Correlations between the structural and magnetic properties in Au/FePd bilayers have been understood using an analytical energy model, such that these properties may be tailored for sensing applications.
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