Abstract:In this paper, an ultra compact surface Plasmon (SP) sensor based on 'ring resonator coupled metal-insulator-metal (MIM) waveguide' is theoretically studied and numerically simulated by finite difference time domain (FDTD) method. Ring and waveguide is filled by material to be sensed and implanted in a silver medium whose frequency dependent relative permittivity is characterized by Drude model. Any change in refractive index of material to be sensed leads to variation in resonance condition. Refractive index … Show more
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