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We propose a highly sensitive hybrid-plasmonic sensor based on thin-gold nanoslit arrays. The transmission characteristics of gold nanoslit arrays are analyzed as changing the thickness of gold layer. The surface plasmon polariton mode excited on the sensing medium, which is sensitive to refractive index change of the sensing medium, is strengthened by reducing the thickness of the gold layer. A design...
We propose a novel approach for generating multiple bands in the energy-momentum dispersion relation of surface plasmon polaritons via coupling with cavity modes supported by long-period gratings. The multibands are induced by an anticrossing phenomenon that occurs between a surface plasmon resonance excited on a thin silver layer in the Kretschmann configuration and multiple Fabry–Pérot resonances...
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