Abstract
We use a multispeckle diffusing wave spectroscopy (MSDWS) method to study the ensemble-averaged dynamics of the fluctuating speckle pattern when illuminating colloidal particles suspended in a static and opaque porous medium with a coherent light source. Experiments were performed with Brownian latex particles in a random packing of glass spheres. The mixing of the light scattered by the moving colloidal particles and the porous matrix gives rise to a plateau value of the intensity autocorrelation function in the long-waiting-time limit. From the plateau in the correlation function, we can determine the fraction of light scattered from moving particles and estimate the photon mean free path in the colloidal solution. The method opens up promising possibilities to probe the static fraction in semisolid materials.
Similar content being viewed by others
References
H.C. van de Hulst, Light Scattering by Small Particles (Dover, New York, 1957).
B. Chu, Laser Light Scattering: Basic Principles and Practice, 2nd edition (Academic Press, London, 1991).
B. Berne, R. Pecora, Dynamic Light Scattering: With Applications to Chemistry, Biology, and Physics (Wiley, New York, 1976).
W. Brown (Editor), Dynamic Light Scattering: The Method and Some Applications (Oxford University Press, 1993).
D.J. Pine, D.A. Weitz, P.E. Wolf, G. Maret, E. Herbolzheimer, P.M. Chaikin, in Scattering and Localization of Classical Waves in Random Media, edited by P. Sheng (World Scientific, 1990).
M. Heckmeier, G. Maret, Europhys. Lett. 34, 257 (1996).
M. Heckmeier, G. Maret, Optics Comm. 148, 1 (1998).
A.P.Y. Wong, P. Wiltzius, Rev. Sci. Instrum. 64, 2547 (1993).
L. Cipelletti, D.A. Weitz, Rev. Sci. Instrum. 70, 3214 (1999).
A. Knaebel, M. Bellour, J.P. Munch, V. Viasnoff, J.L. Harden, Europhys. Lett. 52, 73 (2000).
L. Brunel, A. Brun, P. Snabre, L. Cipelletti, Opt. Expr. 23, 15250 (2007).
J. Ricka, Macromol. Symp. 79, 45 (1994).
I. Flammer, G. Bucher, J. Ricka, J. Opt. Soc. Am. A 15, 2066 (1998).
J.W. Goodman, Statistical Optics (Wiley-Interscience, New York, 2000).
J.Z. Xue, D.J. Pine, S.T. Milner, X.L. Wu, P.M. Chaikin, Phys. Rev. A 46, 6550 (1992).
W.S. Rasband, ImageJ, http://rsb.info.nih.gov/ij/ (1997-2007).
P. Snabre, unpublished results (2008).
W. Leutz, J. Ricka, Opt. Comm. 126, 260 (1996).
J. Crassous, Eur. Phys. J. E 23, 145 (2007).
A. Ishimaru, Wave Propagation and Scattering in Random Media (Academic Press, New York, 1978).
J. Li, A. Lisyanski, T. Cheung, D. Livdan, A. Genack, Europhys. Lett. 22, 675 (1993).
L. Cipelletti, H. Bissig, V. Trappe, P. Ballesta, S. Mazoyer, J. Phys.: Condens. Matter 15, S257 (2003).
A. Duri, P. Ballesta, L. Cipelletti, H. Bissig, V. Trappe, Fluct. Noise Lett. 5, L1 (2005).
A. Duri, H. Bissig, V. Trappe, L. Cipelletti, Phys. Rev. E 72, 051401 (2005).
C.F. Bohren, D.R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley-Interscience, 1998).
A.S. Gittings, R. Bandyopadhay, D.J. Durian, Europhys. Lett. 65, 414 (2004).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Snabre, P., Crassous, J. Multispeckle diffusing wave spectroscopy of colloidal particles suspended in a random packing of glass spheres. Eur. Phys. J. E 29, 149–155 (2009). https://doi.org/10.1140/epje/i2009-10462-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epje/i2009-10462-2