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Proceedings Paper

Study of micromechanism for dynamic light scattering in colloid
Author(s): Tuo Zhu; Yixin Zhang; Haijin Sun
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Paper Abstract

In the study of dynamic light scattering (DLS), the autocorrelation function of the scattered light is one of the most important problems. Through the relationship between autocorrelation function and autocorrelation function of scattered light intensity, using the technology of photon correlation spectroscopy (PCS), we can measure the physical and the chemical properties of the illuminating system. In the illuminated system, the Brownian movement of the scattering particle is a result of dynamic light scattering. In this paper, calculations are presented of the autocorrelation of scattered field by a monodispersion system of spherical particle in colloid following statistical properties of Brownian movement and theory of classical electromagnetic field. The approximation of results which we get was the same single exponential functions in general use, and the results applied to the situation for the Brownian particles in an electric field. The spectral density difference between the two situations is discussed and it is suggested that this result may be employed in the experiments of the quantitative analysis of mixtures of charged macromolecules in colloid.

Paper Details

Date Published: 28 October 1992
PDF: 4 pages
Proc. SPIE 1726, 1992 Shanghai International Symposium on Quantum Optics, (28 October 1992); doi: 10.1117/12.130469
Show Author Affiliations
Tuo Zhu, Wuxi Institute of Light Industry (China)
Yixin Zhang, Wuxi Institute of Light Industry (China)
Haijin Sun, Wuxi Institute of Light Industry (China)

Published in SPIE Proceedings Vol. 1726:
1992 Shanghai International Symposium on Quantum Optics

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