Title

Taking Cascaded Plasmonic Field Enhancement To The Ultimate Limit In Silver Nanoparticle Dimers

Keywords

Cascaded field enhancement; Dimers; Multiplicative cascading; Mutual interaction; Ultimate cascading

Abstract

Cascaded optical field enhancement in coupled plasmonic nanostructures has attracted significant attention because of field enhancement factors that dramatically exceed those observed in isolated nanostructures. While previous studies demonstrated the existence of cascaded enhancement, little work has been done to identify the requirements for achieving maximum field enhancement. Here, we investigate cascaded field enhancement in silver nanosphere dimers as a function of volume ratio and center-to-center separation, and show the requirements for achieving the ultimate cascading limit in nanoparticle dimers. We observe field enhancements that are a factor 75 larger than observed in isolated silver nanoparticles. © 2012 SPIE.

Publication Date

12-1-2012

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8457

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.930333

Socpus ID

84872060782 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84872060782

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