Optical trapping and manipulation of light-absorbing particles by means of a Hermite-Gaussian laser beam

摘要

This paper describes simultaneous optical trapping and displacement of several nonspherical light-absorbing microparticles in air by means of a focused Hermite-Gaussian laser beam (laser mode TEM10, radiation wavelength 457 nm). Agglomerations of carbon nanoparticles are displaced in three dimensions by distances of the order of a millimeter. The structure of the Hermite-Gaussian beam used here made it possible to displace microparticles simultaneously along two parallel trajectories in space. (C) 2015 Optical Society of America.