We demonstrate a novel surface-plasmon resonance sensor that can distinguish surface binding from bulk refractive index changes. This is accomplished by simultaneous interrogation of the sensed medium with long- and short- range surface-plasmon polaritons.
© 2006 Optical Society of America
R. Donipudi, S. Pochiraju, and J. T. Hastings, "Self-Referenced SPR Sensing via Simultaneous Excitation of Long- and Short-Range Surface Plasmons," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CWL3.
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