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Broadband and Wide-angle Cascaded Slits Antenna for Coupling Surface Plasmons with Ultra-high Extinction Ratio

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Abstract

A novel scheme to realize compact unidirectional plasmonic antenna with ultra-high extinction ratio ER=43.1 dB and broadband of 200 nm covering a wide angular range from −17° to 15° with ER>10 dB is proposed.

© 2015 Optical Society of America

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