Peculiarities of the statistics of spectrally selected fluorescence radiation in laser-pumped dye-doped random media

S. A. Yuvchenko; E. V. Ushakova; M. V. Pavlova; M. V. Alonova; D. A. Zimnyakov

doi:10.1117/12.2315130

26 April 2018 Peculiarities of the statistics of spectrally selected fluorescence radiation in laser-pumped dye-doped random media

S. A. Yuvchenko, E. V. Ushakova, M. V. Pavlova, M. V. Alonova, D. A. Zimnyakov

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Proceedings Volume 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV; 107171G (2018) https://doi.org/10.1117/12.2315130
Event: Saratov Fall Meeting 2017, 2017, Saratov, Russian Federation

Abstract

We consider the practical realization of a new optical probe method of the random media which is defined as the reference-free path length interferometry with the intensity moments analysis. A peculiarity in the statistics of the spectrally selected fluorescence radiation in laser-pumped dye-doped random medium is discussed. Previously established correlations between the second- and the third-order moments of the intensity fluctuations in the random interference patterns, the coherence function of the probe radiation, and the path difference probability density for the interfering partial waves in the medium are confirmed. The correlations were verified using the statistical analysis of the spectrally selected fluorescence radiation emitted by a laser-pumped dye-doped random medium. Water solution of Rhodamine 6G was applied as the doping fluorescent agent for the ensembles of the densely packed silica grains, which were pumped by the 532 nm radiation of a solid state laser. The spectrum of the mean path length for a random medium was reconstructed.

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S. A. Yuvchenko, E. V. Ushakova, M. V. Pavlova, M. V. Alonova, and D. A. Zimnyakov "Peculiarities of the statistics of spectrally selected fluorescence radiation in laser-pumped dye-doped random media", Proc. SPIE 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV, 107171G (26 April 2018); https://doi.org/10.1117/12.2315130

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KEYWORDS

Luminescence

Light wave propagation

Light scattering

Statistical analysis

Multiple scattering

Polarization

Scattering

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