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25 August 2015 Avalanches and plasticity for colloids in a time dependent optical trap
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Abstract
With the use of optical traps it is possible to confine assemblies of colloidal particles in two-dimensional and quasi-one-dimensional arrays. Here we examine how colloidal particles rearrange in a quasi-one-dimensional trap with a time dependent confining potential. The particle motion occurs both through slow elastic uniaxial distortions as well as through abrupt large-scale two-dimensional avalanches associated with plastic rearrangements. During the avalanches the particle velocity distributions extend over a broad range and can be fit to a power law consistent with other studies of plastic events mediated by dislocations.
Conference Presentation
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. J. Olson Reichhardt, D. McDermott, and C. Reichhardt "Avalanches and plasticity for colloids in a time dependent optical trap", Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 954818 (25 August 2015); https://doi.org/10.1117/12.2188561
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