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Nanoparticle sizing by coherent light scattering – computer simulation results

D. CHICEA1,*

Affiliation

  1. Physics Department, University Lucian Blaga of Sibiu, Dr. Ion Ratiu Str. 7-9, Sibiu, 550012, Romania

Abstract

If coherent light is incident on a fluid having nanoparticles in suspension the result of the far field interference is a “speckled” image. In a suspension the SCs have a complex movement of both sedimentation and the Brownian motion. As a result of the SCs permanent position changes the speckle image is not static but presents time fluctuations. A computer code to simulate both the static and the dynamic properties of the coherent light scattering on nanofluids was written, tested and used to calculate the far field intensity variation for nanofluids having different particle size. The results are discussed and an experimental method for fast nanoparticle size assessing is suggested..

Keywords

Nanoparticles, Computer simulation, Image processing.

Submitted at: Feb. 25, 2008
Accepted at: April 4, 2008

Citation

D. CHICEA, Nanoparticle sizing by coherent light scattering – computer simulation results, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 813-818 (2008)