Electromagnetic field enhancement for wedge-shaped metal nanostructures

Ali M. Angulo, Cecilia Noguez, George C Schatz

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The role of localized surface plasmon resonances near the surface of a silver or gold wedge is discussed based on quasistatic theory. Strongly enhanced electromagnetic field intensities at moderate distances of 1 nm from the wedge are found by manipulating morphology and dielectric environment. The theory also shows that wedge structures can have high enhancements over a broad range of wavelengths, which is of relevance to surface-enhanced Raman scattering and tip-enhanced Raman scattering measurements and for improving plasmon enhanced photovoltaic devices.

Original languageEnglish
Pages (from-to)1978-1983
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume2
Issue number16
DOIs
Publication statusPublished - Aug 18 2011

Fingerprint

Electromagnetic fields
wedges
Raman scattering
Nanostructures
electromagnetic fields
Metals
augmentation
Surface plasmon resonance
Silver
Gold
metals
Raman spectra
surface plasmon resonance
Wavelength
silver
gold
wavelengths

Keywords

  • Nanoparticles and Nanostructures

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Electromagnetic field enhancement for wedge-shaped metal nanostructures. / Angulo, Ali M.; Noguez, Cecilia; Schatz, George C.

In: Journal of Physical Chemistry Letters, Vol. 2, No. 16, 18.08.2011, p. 1978-1983.

Research output: Contribution to journalArticle

@article{c2f0cee643ef4daa94fbca2e6815ca47,
title = "Electromagnetic field enhancement for wedge-shaped metal nanostructures",
abstract = "The role of localized surface plasmon resonances near the surface of a silver or gold wedge is discussed based on quasistatic theory. Strongly enhanced electromagnetic field intensities at moderate distances of 1 nm from the wedge are found by manipulating morphology and dielectric environment. The theory also shows that wedge structures can have high enhancements over a broad range of wavelengths, which is of relevance to surface-enhanced Raman scattering and tip-enhanced Raman scattering measurements and for improving plasmon enhanced photovoltaic devices.",
keywords = "Nanoparticles and Nanostructures",
author = "Angulo, {Ali M.} and Cecilia Noguez and Schatz, {George C}",
year = "2011",
month = "8",
day = "18",
doi = "10.1021/jz200825g",
language = "English",
volume = "2",
pages = "1978--1983",
journal = "Journal of Physical Chemistry Letters",
issn = "1948-7185",
publisher = "American Chemical Society",
number = "16",

}

TY - JOUR

T1 - Electromagnetic field enhancement for wedge-shaped metal nanostructures

AU - Angulo, Ali M.

AU - Noguez, Cecilia

AU - Schatz, George C

PY - 2011/8/18

Y1 - 2011/8/18

N2 - The role of localized surface plasmon resonances near the surface of a silver or gold wedge is discussed based on quasistatic theory. Strongly enhanced electromagnetic field intensities at moderate distances of 1 nm from the wedge are found by manipulating morphology and dielectric environment. The theory also shows that wedge structures can have high enhancements over a broad range of wavelengths, which is of relevance to surface-enhanced Raman scattering and tip-enhanced Raman scattering measurements and for improving plasmon enhanced photovoltaic devices.

AB - The role of localized surface plasmon resonances near the surface of a silver or gold wedge is discussed based on quasistatic theory. Strongly enhanced electromagnetic field intensities at moderate distances of 1 nm from the wedge are found by manipulating morphology and dielectric environment. The theory also shows that wedge structures can have high enhancements over a broad range of wavelengths, which is of relevance to surface-enhanced Raman scattering and tip-enhanced Raman scattering measurements and for improving plasmon enhanced photovoltaic devices.

KW - Nanoparticles and Nanostructures

UR - http://www.scopus.com/inward/record.url?scp=80051928013&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80051928013&partnerID=8YFLogxK

U2 - 10.1021/jz200825g

DO - 10.1021/jz200825g

M3 - Article

AN - SCOPUS:80051928013

VL - 2

SP - 1978

EP - 1983

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

SN - 1948-7185

IS - 16

ER -