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

41 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

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Imaging and dispersion relations of surface plasmon modes in silver nanorods by near-field spectroscopy'. Together they form a unique fingerprint.

  • Cite this