Imaging and dispersion relations of surface plasmon modes in silver nanorods by near-field spectroscopy

Jong Kuk Lim, Kohei Imura, Tetsuhiko Nagahara, Seong Keun Kim, Hiromi Okamoto

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Surface plasmons of silver nanorods were investigated by using scanning near-field optical microscopy. Near-field transmission images showed spatially oscillatory patterns in nanorods. The oscillatory features of images are attributable to plasmon-mode wavefunctions. From the near-field images and spectra, dispersion relations of surface plasmon modes for various silver nanorods are obtained. It is found that dispersion relation of a nanorod is dependent on its diameter. The spectral features obtained are compared with those for gold nanorods.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalChemical Physics Letters
Volume412
Issue number1-3
DOIs
Publication statusPublished - 2005 Aug 25
Externally publishedYes

Fingerprint

Nanorods
Silver
nanorods
near fields
silver
Spectroscopy
Imaging techniques
spectroscopy
Near field scanning optical microscopy
Image communication systems
Plasmons
Wave functions
plasmons
Gold
gold
microscopy
scanning

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

Imaging and dispersion relations of surface plasmon modes in silver nanorods by near-field spectroscopy. / Lim, Jong Kuk; Imura, Kohei; Nagahara, Tetsuhiko; Kim, Seong Keun; Okamoto, Hiromi.

In: Chemical Physics Letters, Vol. 412, No. 1-3, 25.08.2005, p. 41-45.

Research output: Contribution to journalArticle

Lim, Jong Kuk ; Imura, Kohei ; Nagahara, Tetsuhiko ; Kim, Seong Keun ; Okamoto, Hiromi. / Imaging and dispersion relations of surface plasmon modes in silver nanorods by near-field spectroscopy. In: Chemical Physics Letters. 2005 ; Vol. 412, No. 1-3. pp. 41-45.
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