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Fluorescence properties of dyes adsorbed to silver islands, investigated by picosecond techniques

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Abstract

The fluorescence properties of dye molecules (rhodamine 6G and erythrosin) adsorbed on pure glass surfaces and on silver islands films are investigated by cw and picosecond time-resolved methods. On pure glass surfaces we observe concentration quenching below a critical intermolecular distance (reduction of the fluorescence power per molecule as well as shortened and non-exponential fluorescence decay). On silver islands films the shortening in fluorescence lifetime is more drastic and is nearly independent of the intermolecular distance. This behavior suggests an electrodynamic interaction between dye monomers and plasmons in the metal particles, modified by a damping influence of dye dimers.

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Authors and Affiliations

  1. Institut für Experimentalphysik., Karl-Franzens-Universität Graz, Universitätsplatz 5, A-8010, Graz, Austria

    A. Leitner, M. E. Lippitsch, S. Draxler, M. Riegler & F. R. Aussenegg

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  1. A. Leitner
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  2. M. E. Lippitsch
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  3. S. Draxler
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  4. M. Riegler
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  5. F. R. Aussenegg
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Leitner, A., Lippitsch, M.E., Draxler, S. et al. Fluorescence properties of dyes adsorbed to silver islands, investigated by picosecond techniques. Appl. Phys. B 36, 105–109 (1985). https://doi.org/10.1007/BF00694696

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  • DOI: https://doi.org/10.1007/BF00694696

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