Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing

Authors :: Regatos, D.
Farina, D.
Calle, A.
Cebollada, A.
Sepulveda, B.
Armelles, G.
Lechuga, L.M.
Source :: Journal of Applied Physics. Sept 1, 2010, Vol. 108 Issue 5, 054502-1-054502-6
Publication Year :: 2010
Abstract: The magnetoplasmonic (MP) features and sensing capabilities of Au/Fe/Au trilayer structures are analyzed as transducers of the magneto-optic surface plasmon resonance (MOSPR) biosensor. A twofold increase is confirmed in the MOSPR sensitivity with respect to the intensity-interrogated SPR biosensor in bulk refractive-index changes, keeping a similar chemical resistance and stability, unprecedented in other MP transducers, and biofunctional protocols.

Subjects :: Biosensors -- Research
Gold alloys -- Magnetic properties
Gold alloys -- Optical properties
Gold alloys -- Electric properties
Iron alloys -- Electric properties
Iron alloys -- Magnetic properties
Iron alloys -- Optical properties
Magnetooptics -- Analysis
Surface plasmon resonance -- Analysis
Physics

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