Faster optical delivery of self-arranged multi-particle cluster

Martin Šiler; Tomáš Čižmár; Pavel Zemánek

doi:10.1117/12.929709

10 October 2012 Faster optical delivery of self-arranged multi-particle cluster

Martin Šiler, Tomáš Čižmár, Pavel Zemánek

Proceedings Volume 8458, Optical Trapping and Optical Micromanipulation IX; 84581K (2012) https://doi.org/10.1117/12.929709
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

Rectification of random motion of particle a motional array of optical traps created by interference of two counter-propagating evanescent waves, i.e. in a so called optical conveyor belt (OCB), leads to the directed and controlled motion of such a particle. Particle clusters are formed if more than one particle enters the OCB. The particles were optically self-arranged into a linear chain with well-separated distances between them. We observed a significant increase in the delivery speed of the whole structure as the number of particles in the chain increased. This could provide faster sample delivery in microfluidic systems. We quantified the contributions to the speed enhancement caused by the optical and hydrodynamical interactions between the particles.

Citation Download Citation

Martin Šiler, Tomáš Čižmár, and Pavel Zemánek "Faster optical delivery of self-arranged multi-particle cluster", Proc. SPIE 8458, Optical Trapping and Optical Micromanipulation IX, 84581K (10 October 2012); https://doi.org/10.1117/12.929709

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