Creating high density nanoantenna arrays via plasmon enhanced particle-cavity (PEP-C) architectures

Benjamin M. Ross, Luke P. Lee

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We propose a new solution for high hot-spot density creation by coupling a particle and a cavity in a structure dubbed a plasmonic enhanced particle-cavity (PEP-C) antenna. In comparison to analogous particle-based dimer antenna structures, the PEP-C allows both a higher maximum field and an order-of-magnitude higher hot-spot density. In addition, the hot-spots of the PEP-C antenna can be precisely controlled, resulting in increased reliability. We elucidate the photonic characteristics of the PEP-C antenna and show tuning and optimization through choice of geometric parameters. These properties make the PEP-C antenna an excellent candidate for plasmonic-based biomolecular sensors.

Original languageEnglish
Pages (from-to)6860-6866
Number of pages7
JournalOptics Express
Volume17
Issue number8
DOIs
StatePublished - 13 Apr 2009

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