期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.263905
关键词
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资金
- ARO STTR project Dynamically Tunable Metamaterials
- AFOSR
- YIP [FA9550-11-1-0009]
- ONR MURI [N00014-10-1-0942]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0953311] Funding Source: National Science Foundation
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.
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