FDTD studies of metallic nanoparticle systems

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

Research output: Chapter in Book/Report/Conference proceedingChapter

2 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 sensitiv. These results provide insight into what structures will be most effective for index of refraction sensing applications.

Original languageEnglish
Title of host publicationNATO Security through Science Series C: Environmental Security
Pages11-32
Number of pages22
DOIs
Publication statusPublished - 2009

Publication series

NameNATO Security through Science Series C: Environmental Security
ISSN (Print)18714668

Fingerprint

optical phenomena
electrodynamics
refraction
optical property
coating
spacing
gold
metal
nanoparticle
method
particle
calculation
index

Keywords

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

ASJC Scopus subject areas

  • Environmental Science(all)

Cite this

Atkinson, A. L., McMahon, J. M., & Schatz, G. C. (2009). FDTD studies of metallic nanoparticle systems. In NATO Security through Science Series C: Environmental Security (pp. 11-32). (NATO Security through Science Series C: Environmental Security). 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 Security through Science Series C: Environmental Security. 2009. p. 11-32 (NATO Security through Science Series C: Environmental Security).

Research output: Chapter in Book/Report/Conference proceedingChapter

Atkinson, AL, McMahon, JM & Schatz, GC 2009, FDTD studies of metallic nanoparticle systems. in NATO Security through Science Series C: Environmental Security. NATO Security through Science Series C: Environmental Security, 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 Security through Science Series C: Environmental Security. 2009. p. 11-32. (NATO Security through Science Series C: Environmental Security). 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 Security through Science Series C: Environmental Security. 2009. pp. 11-32 (NATO Security through Science Series C: Environmental Security).
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