Direct far-field observation of surface-plasmon propagation by photoinduced scattering

T. Velinov, Michael Geoffrey Somekh, S. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)

Abstract

A tightly focused laser beam is shown to act as a scatterer of surface plasmons. The energy released into free space due to the scattering is collected by far-field optics. Scanning the laser beam over the plasmon field gives a map of their propagation. Evidence is given which shows that the surface-plasmon map gives much more detail of plasmon propagation and film structure than the photothermal image, which monitors the heat deposited during plasmon propagation.
Original languageEnglish
Pages (from-to)3908-3910
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number25
DOIs
Publication statusPublished - 20 Dec 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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