Particle trapping and transportation by high-intensity singular beams

Yana V. Izdebskaya; V. G. Shvedov; Constantin N. Alexeyev; Alexander V. Volyar

doi:10.1117/12.545890

3 December 2003 Particle trapping and transportation by high-intensity singular beams

Yana V. Izdebskaya, V. G. Shvedov, Constantin N. Alexeyev, Alexander V. Volyar

Proceedings Volume 5257, Ninth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals; (2003) https://doi.org/10.1117/12.545890
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

Abstract

The combined singular beams generated by saddle-like imperfections of the cover glass surface in IR spectral range is subjected to the unfolding process near the focal plane of a microobjective. As far as such beams have their intensity profile similar to those of the optical vortices with the quaternary topological charge they can be exploited for the trapping and transportation of large micro particles. In contrast to the ordinary high-order optical vortices being unstable against the slight perturbations of the beam's shape, the given singular beams conserve their topological structure to trap and carry over the particles up to 200 μm in sizes. This fact is discussed in detail in the given work.

Citation Download Citation

Yana V. Izdebskaya, V. G. Shvedov, Constantin N. Alexeyev, and Alexander V. Volyar "Particle trapping and transportation by high-intensity singular beams", Proc. SPIE 5257, Ninth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, (3 December 2003); https://doi.org/10.1117/12.545890

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