Enhanced optical bistability with film-coupled plasmonic nanocubes

Christos Argyropoulos, Cristian Ciracì, David R. Smith

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

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.

Original languageEnglish (US)
Article number063108
JournalApplied Physics Letters
Volume104
Issue number6
DOIs
StatePublished - Oct 2 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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