Nonlinear Plasmonic Cloaks to Realize Giant All-Optical Scattering Switching

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PhysRevLett.108.263905.pdf (648.31 KB)
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https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.108.263905

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https://doi.org/10.1103/PhysRevLett.108.263905
 http://hdl.handle.net/11603/18816

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UMBC Computer Science and Electrical Engineering Department

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2012-06-27

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journal articles
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Citation of Original Publication

Christos Argyropoulos et al., Nonlinear Plasmonic Cloaks to Realize Giant All-Optical Scattering Switching, Vol. 108, Iss. 26 (2012), https://doi.org/10.1103/PhysRevLett.108.263905

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© 2012 The American Physical Society

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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.