Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods

Moussa N'Gom; Shuzhou Li; George Schatz; Rolf Erni; Ashish Agarwal; Nicholas Kotov; Theodore B. Norris

doi:10.1103/PhysRevB.80.113411

Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods

Moussa N'Gom, Shuzhou Li, George Schatz, Rolf Erni, Ashish Agarwal, Nicholas Kotov, Theodore B. Norris

Northwestern University

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

Electron energy-loss spectroscopy and energy-filtered transmission electron-microscope imaging are used to characterize the energy distribution of the surface plasmon of isolated and coupled gold nanorods. Local-field enhancement and spectral shift of the plasmon modes are observed for two interacting nanoparticles. The spatial modes measured by energy loss are shown to share qualitative similarities with the electromagnetic field distribution around gold nanorods induced by optical excitation as simulated using the discrete dipole-approximation method.

Original language	English
Article number	113411
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.80.113411
Publication status	Published - Sep 29 2009

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.80.113411

Fingerprint Dive into the research topics of 'Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods'. Together they form a unique fingerprint.

Cite this

Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods. / N'Gom, Moussa; Li, Shuzhou; Schatz, George; Erni, Rolf; Agarwal, Ashish; Kotov, Nicholas; Norris, Theodore B.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 11, 113411, 29.09.2009.

Research output: Contribution to journal › Article › peer-review

@article{bd1ab830bde34e73b866c448b2528660,

title = "Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods",

abstract = "Electron energy-loss spectroscopy and energy-filtered transmission electron-microscope imaging are used to characterize the energy distribution of the surface plasmon of isolated and coupled gold nanorods. Local-field enhancement and spectral shift of the plasmon modes are observed for two interacting nanoparticles. The spatial modes measured by energy loss are shown to share qualitative similarities with the electromagnetic field distribution around gold nanorods induced by optical excitation as simulated using the discrete dipole-approximation method.",

author = "Moussa N'Gom and Shuzhou Li and George Schatz and Rolf Erni and Ashish Agarwal and Nicholas Kotov and Norris, {Theodore B.}",

year = "2009",

month = sep,

day = "29",

doi = "10.1103/PhysRevB.80.113411",

language = "English",

volume = "80",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Electron-beam mapping of plasmon resonances in electromagnetically interacting gold nanorods

AU - N'Gom, Moussa

AU - Li, Shuzhou

AU - Schatz, George

AU - Erni, Rolf

AU - Agarwal, Ashish

AU - Kotov, Nicholas

AU - Norris, Theodore B.

PY - 2009/9/29

Y1 - 2009/9/29

N2 - Electron energy-loss spectroscopy and energy-filtered transmission electron-microscope imaging are used to characterize the energy distribution of the surface plasmon of isolated and coupled gold nanorods. Local-field enhancement and spectral shift of the plasmon modes are observed for two interacting nanoparticles. The spatial modes measured by energy loss are shown to share qualitative similarities with the electromagnetic field distribution around gold nanorods induced by optical excitation as simulated using the discrete dipole-approximation method.

AB - Electron energy-loss spectroscopy and energy-filtered transmission electron-microscope imaging are used to characterize the energy distribution of the surface plasmon of isolated and coupled gold nanorods. Local-field enhancement and spectral shift of the plasmon modes are observed for two interacting nanoparticles. The spatial modes measured by energy loss are shown to share qualitative similarities with the electromagnetic field distribution around gold nanorods induced by optical excitation as simulated using the discrete dipole-approximation method.

UR - http://www.scopus.com/inward/record.url?scp=70350580479&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350580479&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.80.113411

DO - 10.1103/PhysRevB.80.113411

M3 - Article

AN - SCOPUS:70350580479

VL - 80

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 11

M1 - 113411

ER -