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Strongly Coupled Plasmonic Modes on Macroscopic Areasvia Template-Assisted Colloidal Self-Assembly.

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Title: Strongly Coupled Plasmonic Modes on Macroscopic Areasvia Template-Assisted Colloidal Self-Assembly.
Authors: Hanske, Christoph1, Tebbe, Moritz1, Kuttner, Christian1, Bieber, Vera1, Tsukruk, Vladimir V.1, Chanana, Munish1, König, Tobias A. F.1, Fery, Andreas1
Source: Nano Letters. Dec2014, Vol. 14 Issue 12, p6863-6871. 9p.
Subjects: Gold nanoparticles, Nuclear cross sections, Metamaterials, Simulation methods & models
Abstract: Wepresent ensembles of surface-ordered nanoparticle arrangements, whichare formed by template-assisted self-assembly of monodisperse, protein-coatedgold nanoparticles in wrinkle templates. Centimeter-squared areasof highly regular, linear assemblies with tunable line width are fabricatedand their extinction cross sections can be characterized by conventionalUV/vis/NIR spectroscopy. Modeling based on electrodynamic simulationsshows a clear signature of strong plasmonic coupling with an interparticlespacing of 1–2 nm. We find evidence for well-defined plasmonicmodes of quasi-infinite chains, such as resonance splitting and multipleradiant modes. Beyond elementary simulations on the individual chainlevel, we introduce an advanced model, which considers the chain lengthdistribution as well as disorder. The step toward macroscopic sampleareas not only opens perspectives for a range of applications in sensing,plasmonic light harvesting, surface enhanced spectroscopy, and informationtechnology but also eases the investigation of hybridization and metamaterialeffects fundamentally. [ABSTRACT FROM AUTHOR]
Copyright of Nano Letters is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Strongly Coupled Plasmonic Modes on Macroscopic Areasvia Template-Assisted Colloidal Self-Assembly.
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  Data: Wepresent ensembles of surface-ordered nanoparticle arrangements, whichare formed by template-assisted self-assembly of monodisperse, protein-coatedgold nanoparticles in wrinkle templates. Centimeter-squared areasof highly regular, linear assemblies with tunable line width are fabricatedand their extinction cross sections can be characterized by conventionalUV/vis/NIR spectroscopy. Modeling based on electrodynamic simulationsshows a clear signature of strong plasmonic coupling with an interparticlespacing of 1–2 nm. We find evidence for well-defined plasmonicmodes of quasi-infinite chains, such as resonance splitting and multipleradiant modes. Beyond elementary simulations on the individual chainlevel, we introduce an advanced model, which considers the chain lengthdistribution as well as disorder. The step toward macroscopic sampleareas not only opens perspectives for a range of applications in sensing,plasmonic light harvesting, surface enhanced spectroscopy, and informationtechnology but also eases the investigation of hybridization and metamaterialeffects fundamentally. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nano Letters is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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