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Low-loss plasmonics via dielectric nanoparticles on metallic films

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Abstract

We theoretically propose a pathway to low-loss plasmonics. We show that dielectric-on-metal nanoresonators scatter more strongly than is possible in all-metal or all-dielectric approaches, offer near-unity-efficiency spontaneous-emission enhancements, and are robust to quantum corrections.

© 2017 Optical Society of America

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