2015
DOI: 10.1063/1.4926931
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Depolarized light scattering from prolate anisotropic particles: The influence of the particle shape on the field autocorrelation function

Abstract: We provide a theoretical analysis for the intermediate scattering function typically measured in depolarized dynamic light scattering experiments. We calculate the field autocorrelation function g1(VH)(Q,t) in dependence on the wave vector Q and the time t explicitly in a vertical-horizontal scattering geometry for differently shaped solids of revolution. The shape of prolate cylinders, spherocylinders, spindles, and double cones with variable aspect ratio is expanded in rotational invariants flm(r). By Fourie… Show more

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Cited by 9 publications
(5 citation statements)
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“…Generalizations to systems composed of anisotropic particles [95], as well as including rotational degrees of freedom [36,54] and possibly induced-dipole effects [68,69] could be added to the present framework in subsequent steps. Apart from that, the mesoscopically based dynamic investigations could be extended to more refined approaches, where the elastic matrix between discretized particles of finite volume is described in terms of continuum elasticity theory [34].…”
Section: Discussionmentioning
confidence: 99%
“…Generalizations to systems composed of anisotropic particles [95], as well as including rotational degrees of freedom [36,54] and possibly induced-dipole effects [68,69] could be added to the present framework in subsequent steps. Apart from that, the mesoscopically based dynamic investigations could be extended to more refined approaches, where the elastic matrix between discretized particles of finite volume is described in terms of continuum elasticity theory [34].…”
Section: Discussionmentioning
confidence: 99%
“…A first step would be to consider rotationally symmetric shape-anisotropic particles such as rods 17,48 or spheroids. [49][50][51] For these systems, the description has to be adapted accordingly, but the underlying physics is basically the same. This is different for particles without any symmetry axis.…”
Section: Discussionmentioning
confidence: 99%
“…Given that no particle is really homogeneous with a perfect central symmetry, there are many particle systems that depolarize light, such as Janus or porous particles. Furthermore, the analysis can be extended for particle systems other than spherical particles, including spheroids, 54 nanorods, [55][56][57] and aggregates.…”
Section: Discussionmentioning
confidence: 99%