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5 October 2023 Optical trapping of soft and active particles - a (his)story of light-based control of colloidal matter
Cornelia Denz, Valeriia Ahlborn, Matthias Rüschenbaum, Randhir Kumar
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Proceedings Volume PC12649, Optical Trapping and Optical Micromanipulation XX; PC126490S (2023) https://doi.org/10.1117/12.2681214
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
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.
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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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