FDTD studies of metallic nanoparticle systems

Ariel L. Atkinson, Jeffrey M. Mcmahon, George C Schatz

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

3 Citations (Scopus)

Abstract

This paper provides an overview of the optical properties of plasmonic nanoparticles, using gold nanowires as a model system. The properties were calculated using classical electrodynamics methods with bulk metal dielectric constants, as these methods provide a nearly quantitative description of nanoparticle optical response that can be used for particles with dimensions of a few nanometers to many hundreds of nanometers. The nanowire calculations are based on the finite-difference time-domain (FDTD) method in two dimensions, and we specifically consider the transmission of light through nanowire arrays, as this provides a simple nanomaterial construct which still displays the richness of optical phenomena that is found for more general nanostructures. The calculations show a number of features that are known for other nanostructures, including the red-shifting of plasmon resonances as wire spacing is decreased, and as particle aspect ratio is increased. In addition, the influence of dielectric coatings on the wires is examined, including factors which determine dielectric sensitivity. These results provide insight into what structures will be most effective for index of refraction sensing applications.

Original languageEnglish
Title of host publicationNATO Science for Peace and Security Series A: Chemistry and Biology
Pages11-32
Number of pages22
DOIs
Publication statusPublished - 2009

Publication series

NameNATO Science for Peace and Security Series A: Chemistry and Biology
ISSN (Print)18746489

Fingerprint

Nanowires
Metal Nanoparticles
Nanostructures
Nanoparticles
Optical Phenomena
Wire
Finite difference time domain method
Electrodynamics
Refraction
Nanostructured materials
Gold
Aspect ratio
Permittivity
Optical properties
Metals
Light
Coatings

Keywords

  • Dielectric sensitivity
  • Extinction
  • Finite-difference time-domain
  • Gold
  • Hole-array
  • Nanoparticle
  • Nanowire array
  • Plasmon
  • Transmission

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Safety, Risk, Reliability and Quality

Cite this

Atkinson, A. L., Mcmahon, J. M., & Schatz, G. C. (2009). FDTD studies of metallic nanoparticle systems. In NATO Science for Peace and Security Series A: Chemistry and Biology (pp. 11-32). (NATO Science for Peace and Security Series A: Chemistry and Biology). https://doi.org/10.1007/978-90-481-2590-6_2

FDTD studies of metallic nanoparticle systems. / Atkinson, Ariel L.; Mcmahon, Jeffrey M.; Schatz, George C.

NATO Science for Peace and Security Series A: Chemistry and Biology. 2009. p. 11-32 (NATO Science for Peace and Security Series A: Chemistry and Biology).

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

Atkinson, AL, Mcmahon, JM & Schatz, GC 2009, FDTD studies of metallic nanoparticle systems. in NATO Science for Peace and Security Series A: Chemistry and Biology. NATO Science for Peace and Security Series A: Chemistry and Biology, pp. 11-32. https://doi.org/10.1007/978-90-481-2590-6_2
Atkinson AL, Mcmahon JM, Schatz GC. FDTD studies of metallic nanoparticle systems. In NATO Science for Peace and Security Series A: Chemistry and Biology. 2009. p. 11-32. (NATO Science for Peace and Security Series A: Chemistry and Biology). https://doi.org/10.1007/978-90-481-2590-6_2
Atkinson, Ariel L. ; Mcmahon, Jeffrey M. ; Schatz, George C. / FDTD studies of metallic nanoparticle systems. NATO Science for Peace and Security Series A: Chemistry and Biology. 2009. pp. 11-32 (NATO Science for Peace and Security Series A: Chemistry and Biology).
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