Acta Physica Hungarica

, 54:139 | Cite as

Investigation of anti-Stokes fluorescence in mixed rhodamine 6G—Malachite green systems

  • A. Bujko
  • C. Bojarski
  • R. Bujko
Fluids, Plasmas and Electric Discharges


Concentrational changes of the fluorescence quantum yield and emission anisotropy were measured for rhodamine 6G (donor) in the presence of malachite green (acceptor) in glycerin—alcohol solutions, excited in the anti-Stokes and Stokes regions. Reduction of the nonradiative energy transfer efficiency in the case of anti-Stokes excitation was observed. The results of measurements proved to be in good agreement with the theory [10] which allows for a multistep mechanism from donor to acceptor energy transfer for Stokes as well as anti-Stokes excitation. However, in the latter case this agreement could have been obtained for a clearly lower value of the absolute donor fluorescence yield.


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Copyright information

© with the authors 1983

Authors and Affiliations

  • A. Bujko
    • 1
  • C. Bojarski
    • 1
  • R. Bujko
    • 1
  1. 1.Institute of PhysicsTechnical UniversityGdańskPoland

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