title: Rotation of large asymmetrical absorbing objects by Laguerre-Gauss beams.
abstract: In this Letter, we show the manipulation and rotation of opaque graphite through adhesion with optically trapped polystyrene spheres. The absorbing graphite is rotated by the orbital angular momentum transfer from a Laguerre-Gauss laser mode and is trapped due to the presence of refracting spheres. This technique is effective for trapping and rotating absorbing objects of all sizes, including those larger than the laser mode.
authors.forename: Catherine M
authors.initials: CM
authors.lastname: Herne
authors.forename: Kristina M
authors.initials: KM
authors.lastname: Capuzzi
authors.forename: Emily
authors.initials: E
authors.lastname: Sobel
authors.forename: Ryan T
authors.initials: RT
authors.lastname: Kropas
mesh_terms: D065638:Absorption, Radiation; D006108:Graphite / Q000737:chemistry; D052898:Optical Tweezers; D011137:Polystyrenes / Q000737:chemistry; D012399:Rotation
chemical_list: D011137:Polystyrenes; D006108:Graphite