Enhanced and Localized Multiphoton Excited Fluorescence Near Metallic Silver Islands: Metallic Islands Can Increase Probe Photostability

Joseph R. Lakowicz, Ignacy Gryczynski, Joanna Malicka, Zygmunt Gryczynski, Chris D. Geddes

Research output: Contribution to journalReview article

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The enhanced and localized multiphoton excitation of rhodamine B (RhB) fluorescence near metallic silver islands is studied. The close-proximity metallic silver islands alter the radiative decay rate and excitation rate of fluorophores. The increase in fluorescence emission intensity for RhB molecules adjacent to metallic silver islands is accompanied by a reduction in lifetime. In addition to modifying a fluorophore's radiative decay, the metallic particles or colloids also increase the excitation rates by concentrating the incident light.

Original languageEnglish
Article number453838
Pages (from-to)299-302
Number of pages4
JournalJournal of Fluorescence
Issue number3-4
StatePublished - 1 Jan 2002



  • Enhanced fluorescence
  • Enhanced photostability
  • Metal-enhanced fluorescence, localized excitation
  • Radiative decay engineering

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