Design and optimization of a novel surface plasmon resonance biosensor based on Otto configuration

A theoretical study on a novel planar waveguide surface Plasmon Biosensor is presented in this paper. The proposed biosensor has a configuration similar to the Otto excitation mechanism for surface Plasmon polaritons. The performance of the device with respect to key system parameters such as gap width and device length is investigated using an eigenmode solver with perfectly matched layers (PML). Device resolution of 2.3×10 RIU has been demonstrated for an aqueous analyte. ©2009 Optical Society of America OCIS codes: (130.6010) Sensors; (240.6680) Surface plasmons; (060.2370) Fiber optics sensors; (130.3120) Integrated optics devices. References and links 1. J. Homola, S. Yee, and G. Gauglitz, “Surface plasmon resonance sensors: review ,” Sens. Actuators B Chem. 54(1-2), 3–15 (1999). 2. C. Mouvet, R. D. Harris, C. Maciag, B. J. Luff, J. S. Wilkinson, J. Piehler, A. Brecht, G. Gauglitz, R. Abuknesha, and G. 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