Particles dynamics in travelling optical lattices

P. Jákl; A. V. Arzola; P. Zemánek; M. Šiler; K. Volke-Sepúlveda

doi:10.1117/12.860426

27 August 2010 Particles dynamics in travelling optical lattices

P. Jákl, A. V. Arzola, P. Zemánek, M. Šiler, K. Volke-Sepúlveda

Proceedings Volume 7762, Optical Trapping and Optical Micromanipulation VII; 77620Y (2010) https://doi.org/10.1117/12.860426
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

We demonstrate optical manipulation and sorting of micrometer-sized dielectric particles using one-dimensional periodic interference pattern created by interference of two beams in a sample space. These beams are generated by a combined phase grating applied on the spatial light modulator which allows to set dynamically the position and spatial period of the interference pattern. If a microparticle of fixed size is placed into such pattern, the optical forces acting upon it vary according to the spatial period of this optical lattice. We show how to use this property for sorting of mixtures of particles by moving either the interference pattern or the sample chamber. The mechanism is examined both theoretically and experimentally.

Citation Download Citation

P. Jákl, A. V. Arzola, P. Zemánek, M. Šiler, and K. Volke-Sepúlveda "Particles dynamics in travelling optical lattices", Proc. SPIE 7762, Optical Trapping and Optical Micromanipulation VII, 77620Y (27 August 2010); https://doi.org/10.1117/12.860426

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