Investigating nanoparticle aggregation dynamics in an aqueous magnetic fluid by light scattering anisotropy

Dan Chicea

doi:10.1117/12.865610

17 May 2010 Investigating nanoparticle aggregation dynamics in an aqueous magnetic fluid by light scattering anisotropy

Dan Chicea

Proceedings Volume 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II; 74690O (2010) https://doi.org/10.1117/12.865610
Event: ROMOPTO 2009, 2009, Sibiu, Romania

Abstract

Light scattering on particles having the diameter comparable with the wavelength is accurately described by the Mie theory and the light scattering anisotropy can conveniently be described by the one parameter Henyey Greenstein phase function. An aqueous suspension containing magnetite nanoparticles was the target of a coherent light scattering experiment. By fitting the scattering phase function on the experimental data the scattering anisotropy parameter can be assessed. As the scattering parameter strongly depends of the scatterer size, the average particle diameter was thus estimated and particle aggregates presence was probed. This technique was used to investigate the nanoparticle aggregation dynamics and the results are presented in this work.

Citation Download Citation

Dan Chicea "Investigating nanoparticle aggregation dynamics in an aqueous magnetic fluid by light scattering anisotropy", Proc. SPIE 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II, 74690O (17 May 2010); https://doi.org/10.1117/12.865610

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