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Extraordinary Optical Transmission Enhancement of Asymmetric Nano-aperture with Surface Corrugation

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Abstract

We presented an asymmetric nano-aperture with the surface corrugation characterized by both the existence of the propagation mode and the generation of the surface plasmon polaritons (SPP) to provide extraordinary optical transmission enhancement by a factor of 105 compared with a 60-nm square aperture at a subwavelength spot size of 0.2A.

© 2005 Optical Society of America

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