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9 April 2020 Photophoresis-based laser manipulation of airborne particles using structured laser beams
Alexey P. Porfirev, Anna B. Dubman
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Proceedings Volume 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling; 114580B (2020) https://doi.org/10.1117/12.2557883
Event: Saratov Fall Meeting 2019: VII International Symposium on Optics and Biophotonics, 2019, Saratov, Russian Federation
Abstract
We investigate laser trapping of airborne light-absorbing particles via photophoretic forces. It is well known that the use of photophoretic forces allows one to guide light-absorbing nano- and microparticles at distances of up to tens of centimeters. We use various types of structured laser beams (optical "bottle" beams and line-shaped optical traps) for manipulation of agglomerations of carbon nanoparticles. The possibility to trap and guide both single light-absorbing particles and arrays of light-absorbing particles is demonstrated. In addition, the possibility of power-dependent particle guiding is shown.
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Alexey P. Porfirev and Anna B. Dubman "Photophoresis-based laser manipulation of airborne particles using structured laser beams", Proc. SPIE 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling, 114580B (9 April 2020); https://doi.org/10.1117/12.2557883
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KEYWORDS
Optical trapping
Optical tweezers
Bessel beams
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