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1 August 2021 Transfer of transverse optical angular momentum to optically trapped birefringent particles
Alexander B. Stilgoe, Halina Rubinsztein-Dunlop, Timo A Nieminen
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Proceedings Volume 11798, Optical Trapping and Optical Micromanipulation XVIII; 117981C (2021) https://doi.org/10.1117/12.2596205
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
We report on the observation of transfer of transverse angular momentum to birefringent vaterite particles (positive uniaxial crystal) several wavelengths in size and trapped with optical tweezers in a transmission optical system and discuss prospects for quantitative measurement of angular momentum that this system poses. Such rotational control of spherical particles are excellent components of optically driven nano and micromachines that generate localised shear flows.
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Alexander B. Stilgoe, Halina Rubinsztein-Dunlop, and Timo A Nieminen "Transfer of transverse optical angular momentum to optically trapped birefringent particles", Proc. SPIE 11798, Optical Trapping and Optical Micromanipulation XVIII, 117981C (1 August 2021); https://doi.org/10.1117/12.2596205
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KEYWORDS
Particles
Light scattering
Laser beam propagation
Laser scattering
Optical tweezers
Scattering
Crystals
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