Publikation:

Dynamic Speckle Correlations

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2001

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Scheffold, Frank

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http://nbn-resolving.de/urn:nbn:de:bsz:352-173935
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SEBBAH, Patrick, ed.. Waves and imaging through complex media : proceedings of the International Physics School on Waves and Imaging through Complex Media, Cargèse, France, August 30 - September 3, 1999. Dordrecht [u.a.]: Kluwer, 2001, pp. 413-433. ISBN 0-7923-6814-2

Zusammenfassung

Long- and infinite range correlations C2 and C3 in the optical speckle pattern represent one of the most interesting phenomena in multiple scattering of light. Despite the strong scattering these correlations survive the averaging process of light diffusion and are even enhanced with increased randomness. In this article we are going to discuss the microscopic origin of these particular correlations which are explained in the simple picture of one and twofold crossing of multiple scattering paths. We present a comprehensive experimental study of dynamic speckle correlations, C2(t) and C3(t), where the phase shift between the multiple scattering paths is caused by the Brownian motion of the scattering particles. The shape and amplitude of the correlation functions C2(t) and C3(t) are in good overall agreement with theory. Deviations are found in the case of C2(t) when correlations are generated close to the incoming surface which can be explained by single scattering contributions.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

speckle correlations, diffusing wave spectroscopy, conductance fluctuations

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ISO 690SCHEFFOLD, Frank, Georg MARET, 2001. Dynamic Speckle Correlations. In: SEBBAH, Patrick, ed.. Waves and imaging through complex media : proceedings of the International Physics School on Waves and Imaging through Complex Media, Cargèse, France, August 30 - September 3, 1999. Dordrecht [u.a.]: Kluwer, 2001, pp. 413-433. ISBN 0-7923-6814-2
BibTex
@inproceedings{Scheffold2001Dynam-17393,
  year={2001},
  title={Dynamic Speckle Correlations},
  isbn={0-7923-6814-2},
  publisher={Kluwer},
  address={Dordrecht [u.a.]},
  booktitle={Waves and imaging through complex media  :  proceedings of the International Physics School on Waves and Imaging through Complex Media, Cargèse, France, August 30 - September 3, 1999},
  pages={413--433},
  editor={Sebbah, Patrick},
  author={Scheffold, Frank and Maret, Georg}
}
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