title: Nonlinear plasmonic cloaks to realize giant all-optical scattering switching.
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.
authors.affiliation: Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA.
authors.forename: Christos
authors.initials: C
authors.lastname: Argyropoulos
authors.forename: Pai-Yen
authors.initials: PY
authors.lastname: Chen
authors.forename: Francesco
authors.initials: F
authors.lastname: Monticone
authors.forename: Giuseppe
authors.initials: G
authors.lastname: D'Aguanno
authors.forename: Andrea
authors.initials: A
authors.lastname: Alù