Enhanced optical bistability with film-coupled plasmonic nanocubes

TitleEnhanced optical bistability with film-coupled plasmonic nanocubes
Publication TypeJournal Article
Year of Publication2014
AuthorsC. Argyropoulos, C. Ciracì, D.R. Smith
JournalApplied Physics Letters
Volume104
Issue6
Pagination063108
Date PublishedOct-02-2014
ISSN0003-6951
Abstract

Colloidally synthesized nanocubes strongly coupled to conducting films hold great promise for enhancing different nonlinear optical processes. They exhibit a robust and sensitive scattering response that can be easily controlled by their geometrical and material parameters. Strong local field enhancement is generated at the gap regions between the nanocubes and the metallic film. We show that strong optical bistability and all-optical switching behavior can be obtained by loading these nanogaps with Kerr nonlinear materials. Relatively low input intensities are required to obtain these nonlinear effects. The proposed design can lead to efficient, low-power, and ultrafast all-optical memories and scattering nanoswitches. (C) 2014 AIP Publishing LLC.

URLhttp://scitation.aip.org/content/aip/journal/apl/104/6/10.1063/1.4866048
DOI10.1063/1.4866048
Short TitleAppl. Phys. Lett.