Nonlinear Plasmonic Cloaks to Realize Giant All-Optical Scattering Switching

被引：325

作者：

Argyropoulos, Christos ^{[1
]}

Chen, Pai-Yen ^{[1
]}

Monticone, Francesco ^{[1
]}

D'Aguanno, Giuseppe ^{[2
]}

Alu, Andrea ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

[2] AEgis Technol, Nanogenesis Div, Huntsville, AL 35806 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 26期

基金：

美国国家科学基金会;

关键词：

FANO RESONANCES; METAMATERIALS; NANOPARTICLES; LIGHT;

D O I：

10.1103/PhysRevLett.108.263905

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

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