Surface-Plasmon-Mediated Single-Molecule Fluorescence Through a Thin Metallic Film

F. D. Stefani; K. Vasilev; N. Bocchio; N. Stoyanova; M. Kreiter

doi:10.1103/PhysRevLett.94.023005

Surface-Plasmon-Mediated Single-Molecule Fluorescence Through a Thin Metallic Film

F. D. Stefani, K. Vasilev, N. Bocchio, N. Stoyanova, M. Kreiter

Research output: Contribution to journal › Article › peer-review

134 Citations (Scopus)

Abstract

We demonstrate that fluorescence of single molecules in the nanometric vicinity of a thin gold film can be effectively excited and detected through the film with an epi-illumination scanning confocal microscope. A full theoretical treatment of the fluorescence signal indicates that both excitation and emission are surface-plasmon mediatea. Remarkably, the number of photons detectable from chromophores perpendicular to the interface is enhanced by the presence of the metal.

Original language	English
Article number	023005
Number of pages	4
Journal	Physical Review Letters
Volume	94
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.94.023005
Publication status	Published - 21 Jan 2005
Externally published	Yes

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AU - Kreiter, M.

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AB - We demonstrate that fluorescence of single molecules in the nanometric vicinity of a thin gold film can be effectively excited and detected through the film with an epi-illumination scanning confocal microscope. A full theoretical treatment of the fluorescence signal indicates that both excitation and emission are surface-plasmon mediatea. Remarkably, the number of photons detectable from chromophores perpendicular to the interface is enhanced by the presence of the metal.

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Surface-Plasmon-Mediated Single-Molecule Fluorescence Through a Thin Metallic Film

Abstract

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