Presentation
5 October 2023 Optical trapping of soft and active particles - a (his)story of light-based control of colloidal matter
Author Affiliations +
Abstract
Soft matter – from polymers over molecular assemblies up to cells – exhibit unique mechanical properties, as being easily deformable under external forces. When subject to optical forces, they may on the one hand be analyzed in their features as viscoelasticity or scattering. On the other hand, complex light may transfer momentum or orbital angular momentum to soft matter, allowing to arrange, structure, and assemble functional particles. In this keynote, we showcase examples of optical trapping of droplets, viscoelastic complex matter, active swimmers, and cells, and demonstrate the versatile features of interaction of light with soft matter from analysis to control.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cornelia Denz, Valeriia Ahlborn, Matthias Rüschenbaum, and Randhir Kumar "Optical trapping of soft and active particles - a (his)story of light-based control of colloidal matter", Proc. SPIE PC12649, Optical Trapping and Optical Micromanipulation XX, PC126490S (5 October 2023); https://doi.org/10.1117/12.2681214
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KEYWORDS
Optical tweezers

Particles

Metrology

Fluid dynamics

Structured light

Viscoelasticity

Polarization

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