Electrical & Computer Engineering, Department of
Document Type
Article
Date of this Version
2012
Citation
PRL 108, 263905 (2012)
Abstract
Here we extend the reach of Fano resonant coupling by combining this concept with cloaking and plasmonic resonances in a single nonlinear nanoparticle, in order to realize giant all-optical scattering nanoswitches controlled by moderate pumping intensities. We show that a core-shell nonlinear plasmonic particle may be designed to abruptly switch from being completely cloaked to being strongly resonant, with up to a 40 dB cross-sectional difference. Self-tunable optical cloaks and resonant scatterers are envisioned for use as efficient all-optical switches and nanomemories.
COinS
Comments
Copyright 2012 American Physical Society
DOI: 10.1103/PhysRevLett.108.263905