Plasmonic optical properties of a single gold nano-rod

H.J. Huang, C.P. Yu, H.C. Chang, K.P. Chiu, H.M. Chen, R.S. Liu, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

64 Citations (Scopus)


Polarization-contrast microscopy coupled with an atomic force microscope is utilized to attain far-field optical images of the multipolar surface plasmon resonance (SPR) modes of single gold nano-rod. Modulated standing modes resulted from the interference of longitudinal SPR modes and incident light are observed and studied. By counting the average distance of adjacent beats on this single gold nano-rod, the wave vector of longitudinal SPR modes can be obtained. We found a linear relationship between the wave vectors of the incident light and the induced SPR modes. Experimental results demonstrate a feasible way on acquiring plasmonic optical properties from an individual single gold nano-rod. © 2007 Optical Society of America.
Original languageEnglish
Pages (from-to)7132-7139
Number of pages8
JournalOptics Express
Issue number12
Publication statusPublished - 11 Jun 2007
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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