Extinction spectra of silver nanoparticle arrays

Shengli Zou, Linlin Zhao, George C Schatz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

The optical properties of silver nanoparticle arrays are studied by T-matrix and discrete dipole approximation (DDA) methods. Arrays of spherical silver particles with a radius of 30 nm are investigated with particular emphasis on the influence of array disorder on optical response. We find that the dipole peak intensities decrease when the array becomes disordered and the plasmon resonance wavelengths generally exhibit smaller blue shifts compared to perfectly ordered arrays. Using an extended DDA method, we calculate the extinction spectra of ordered nanodisk arrays, examining the variation of plasmon resonance wavelength with interparticle spacing (at fixed particle size). The calculated blue shift of the plasmon wavelength with decreasing interparticle spacing is found to be in excellent agreement with recent experiments.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsN.J. Halas
Pages174-181
Number of pages8
Volume5221
DOIs
Publication statusPublished - 2003
EventPlasmonics: Metallic Nanostuctures and Their Optical Properties - San Diego, CA, United States
Duration: Aug 3 2003Aug 5 2003

Other

OtherPlasmonics: Metallic Nanostuctures and Their Optical Properties
CountryUnited States
CitySan Diego, CA
Period8/3/038/5/03

Fingerprint

Silver
extinction
silver
Nanoparticles
Wavelength
nanoparticles
dipoles
blue shift
Optical properties
Particle size
spacing
wavelengths
approximation
Experiments
disorders
optical properties
radii
matrices

Keywords

  • Array
  • Disorder
  • Extinction
  • Nanoparticle

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Zou, S., Zhao, L., & Schatz, G. C. (2003). Extinction spectra of silver nanoparticle arrays. In N. J. Halas (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5221, pp. 174-181) https://doi.org/10.1117/12.503436

Extinction spectra of silver nanoparticle arrays. / Zou, Shengli; Zhao, Linlin; Schatz, George C.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / N.J. Halas. Vol. 5221 2003. p. 174-181.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zou, S, Zhao, L & Schatz, GC 2003, Extinction spectra of silver nanoparticle arrays. in NJ Halas (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5221, pp. 174-181, Plasmonics: Metallic Nanostuctures and Their Optical Properties, San Diego, CA, United States, 8/3/03. https://doi.org/10.1117/12.503436
Zou S, Zhao L, Schatz GC. Extinction spectra of silver nanoparticle arrays. In Halas NJ, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5221. 2003. p. 174-181 https://doi.org/10.1117/12.503436
Zou, Shengli ; Zhao, Linlin ; Schatz, George C. / Extinction spectra of silver nanoparticle arrays. Proceedings of SPIE - The International Society for Optical Engineering. editor / N.J. Halas. Vol. 5221 2003. pp. 174-181
@inproceedings{f8d1fde48b2c4c30a7b1af24e0ddf90b,
title = "Extinction spectra of silver nanoparticle arrays",
abstract = "The optical properties of silver nanoparticle arrays are studied by T-matrix and discrete dipole approximation (DDA) methods. Arrays of spherical silver particles with a radius of 30 nm are investigated with particular emphasis on the influence of array disorder on optical response. We find that the dipole peak intensities decrease when the array becomes disordered and the plasmon resonance wavelengths generally exhibit smaller blue shifts compared to perfectly ordered arrays. Using an extended DDA method, we calculate the extinction spectra of ordered nanodisk arrays, examining the variation of plasmon resonance wavelength with interparticle spacing (at fixed particle size). The calculated blue shift of the plasmon wavelength with decreasing interparticle spacing is found to be in excellent agreement with recent experiments.",
keywords = "Array, Disorder, Extinction, Nanoparticle",
author = "Shengli Zou and Linlin Zhao and Schatz, {George C}",
year = "2003",
doi = "10.1117/12.503436",
language = "English",
volume = "5221",
pages = "174--181",
editor = "N.J. Halas",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Extinction spectra of silver nanoparticle arrays

AU - Zou, Shengli

AU - Zhao, Linlin

AU - Schatz, George C

PY - 2003

Y1 - 2003

N2 - The optical properties of silver nanoparticle arrays are studied by T-matrix and discrete dipole approximation (DDA) methods. Arrays of spherical silver particles with a radius of 30 nm are investigated with particular emphasis on the influence of array disorder on optical response. We find that the dipole peak intensities decrease when the array becomes disordered and the plasmon resonance wavelengths generally exhibit smaller blue shifts compared to perfectly ordered arrays. Using an extended DDA method, we calculate the extinction spectra of ordered nanodisk arrays, examining the variation of plasmon resonance wavelength with interparticle spacing (at fixed particle size). The calculated blue shift of the plasmon wavelength with decreasing interparticle spacing is found to be in excellent agreement with recent experiments.

AB - The optical properties of silver nanoparticle arrays are studied by T-matrix and discrete dipole approximation (DDA) methods. Arrays of spherical silver particles with a radius of 30 nm are investigated with particular emphasis on the influence of array disorder on optical response. We find that the dipole peak intensities decrease when the array becomes disordered and the plasmon resonance wavelengths generally exhibit smaller blue shifts compared to perfectly ordered arrays. Using an extended DDA method, we calculate the extinction spectra of ordered nanodisk arrays, examining the variation of plasmon resonance wavelength with interparticle spacing (at fixed particle size). The calculated blue shift of the plasmon wavelength with decreasing interparticle spacing is found to be in excellent agreement with recent experiments.

KW - Array

KW - Disorder

KW - Extinction

KW - Nanoparticle

UR - http://www.scopus.com/inward/record.url?scp=2342532373&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2342532373&partnerID=8YFLogxK

U2 - 10.1117/12.503436

DO - 10.1117/12.503436

M3 - Conference contribution

AN - SCOPUS:2342532373

VL - 5221

SP - 174

EP - 181

BT - Proceedings of SPIE - The International Society for Optical Engineering

A2 - Halas, N.J.

ER -