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Type: Artigo de Periódico
Title: Detection Of Plasmon Coupling Between Silver Nanowires Based On Hyperspectral Darkfield And Sers Imaging And Supported By Dda Theoretical Calculations
Author: Santos
JJ; Ivanov
E; dos Santos
DP; Toma
HE; Corio
Abstract: We report the unprecedented observation of plasmon coupling between silver nanowires, showing how the surface-enhanced Raman scattering depends upon this interaction and how the spectrum can be shaped by the hot spot. Such observations were accomplished by Raman spectroscopy mapping of silver nanowires modified with rhodamine. The local spectra on the hot spots were measured by darkfield hyperspectral microscopy, a powerful but uncommonly used technique that is capable of determining the location, structure, and spectra of the hot spots. The result obtained by the simulation of two parallel nanowires based on the discrete dipole approximation (DDA) method was in excellent agreement with the results obtained experimentally.
Subject: Darkfield
Hyperspectral Microscopy
Dda Calculations
Plasmon Coupling
Silver Nanowires
Citation: Chemphyschem. WILEY-V C H VERLAG GMBH, n. 17, n. 4, p. 463 - 467.
Rights: fechado
Identifier DOI: 10.1002/cphc.201501051
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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