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Issue 14, 2012
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Truncated correlations in video microscopy of colloidal solids

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Abstract

Studies by video microscopy on fluctuating colloids measure the real-space correlations in particle motion. This set of correlations is then treated as a matrix, in order to study the spectrum and mode structure. We show that in general the deduced modes are modified by the truncation of the full real-space correlations. We perform a theoretical analysis of the truncation, find the boundary conditions imposed by the truncation, and propose practical windowing strategies to eliminate artefacts. We study the problem from various perspectives, to compile a survey for experimentalists.

Graphical abstract: Truncated correlations in video microscopy of colloidal solids

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Publication details

The article was received on 06 Nov 2011, accepted on 18 Jan 2012 and first published on 27 Feb 2012


Article type: Paper
DOI: 10.1039/C2SM07117G
Citation: Soft Matter, 2012,8, 3864-3874
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    Truncated correlations in video microscopy of colloidal solids

    M. Schindler and A. C. Maggs, Soft Matter, 2012, 8, 3864
    DOI: 10.1039/C2SM07117G

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