Journal ArticleDOI
Designed ultrafast optical nonlinearity in a plasmonic nanorod metamaterial enhanced by nonlocality
Gregory A. Wurtz,Robert Pollard,William Hendren,Gary P. Wiederrecht,David J. Gosztola,Viktor A. Podolskiy,Anatoly V. Zayats +6 more
TLDR
The use of nonlocality to enhance the nonlinear optical response of metamaterials, demonstrated here in plasmonic nanorod composites, could lead to ultrafast, low-power all-optical information processing in subwavelength-scale devices.Abstract:
All-optical signal processing enables modulation and transmission speeds not achievable using electronics alone. However, its practical applications are limited by the inherently weak nonlinear effects that govern photon-photon interactions in conventional materials, particularly at high switching rates. Here, we show that the recently discovered nonlocal optical behaviour of plasmonic nanorod metamaterials enables an enhanced, ultrafast, nonlinear optical response. We observe a large (80%) change of transmission through a subwavelength thick slab of metamaterial subjected to a low control light fluence of 7 mJ cm(-2), with switching frequencies in the terahertz range. We show that both the response time and the nonlinearity can be engineered by appropriate design of the metamaterial nanostructure. The use of nonlocality to enhance the nonlinear optical response of metamaterials, demonstrated here in plasmonic nanorod composites, could lead to ultrafast, low-power all-optical information processing in subwavelength-scale devices.read more
Citations
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From metamaterials to metadevices.
TL;DR: This Review summarizes research on photonic, terahertz and microwave electromagnetic metamaterials and metadevices with functionalities attained through the exploitation of phase-change media, semiconductors, graphene, carbon nanotubes and liquid crystals.
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Functional Gold Nanorods: Synthesis, Self-Assembly, and Sensing Applications
TL;DR: The synthesis, functionalization, self-assembly, and sensing applications of gold nanorods, including single-crystalline and pentahedrally-twinned rods, which are synthesized by wet chemistry methods, and poly Crystalline rods,Which are synthesize by templated deposition, are discussed.
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Nonlinear photonic metasurfaces
TL;DR: In this article, the design of nonlinear photonic metasurfaces is discussed, in particular the criteria for choosing the materials and symmetries of the meta-atoms.
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Active Plasmonics: Principles, Structures, and Applications
TL;DR: A first-ever in-depth description of the theoretical relationship between surface plAsmon resonance and its affecting factors, which forms the basis for active plasmon control, will be presented.
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Quantum nanophotonics using hyperbolic metamaterials
TL;DR: In this article, the authors focus on the class of nanostructured media with hyperbolic dispersion that have emerged as one of the most promising metamaterials with a multitude of practical applications from subwavelength imaging, nanoscale waveguiding, biosensing to nonlinear switching.
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