Experimental investigation into the possibilities of using a spatial light modulator for laser-trapping light-absorbing micro-objects in air

Alexey P. Porfirev

doi:10.1117/12.2231275

26 March 2016 Experimental investigation into the possibilities of using a spatial light modulator for laser-trapping light-absorbing micro-objects in air

Alexey P. Porfirev

Author Affiliations +

Proceedings Volume 9807, Optical Technologies for Telecommunications 2015; 98070O (2016) https://doi.org/10.1117/12.2231275
Event: XIII International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2015, Ufa, Russian Federation

Abstract

We have investigated laser-trapping of light-absorbing particles in air with a single laser beam. We have studied possibilities of using lenses with a long focal length for trapping light-absorbing microparticles with a spatial light modulator. Finally, we demonstrate photophoresis-based optical trapping of absorbing airborne nanoclusters with a lens with a long focal length. In these experiments, we used an optical setup with a spatial light modulator. In contrast to experiments with a short focal lens, we were able to manipulate a much smaller number of particles in these experiments. A mechanism for such optical trapping is discussed by considering the combined action of several forces affecting the trapped particles.

Citation Download Citation

Alexey P. Porfirev "Experimental investigation into the possibilities of using a spatial light modulator for laser-trapping light-absorbing micro-objects in air", Proc. SPIE 9807, Optical Technologies for Telecommunications 2015, 98070O (26 March 2016); https://doi.org/10.1117/12.2231275

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