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Optical trapping and manipulation using laser beams play a key role in manyareas including biology, atomic science, and nanofabrication. Here, we proposeand experimentally demonstrate the first use of a vortex-pair beam in opticaltrapping and manipulation. We successfully trap two spherical microparticlessimultaneously by a single vortex-pair beam. Precisely position-controllablemanipulation of the trapped spherical microparticles is realized by adjustingthe off-axis distance of the vortices on the initial phase plane of thevortex-pair beam. Based on the feature of the vortex-pair beam, as an opticalwrench, the high-precision angular-controllable rotation of the cylindricalmicrorod is achieved by rotating the initial phase structure. Our resultprovides a rich control on the trapping of microparticles and has greatlyimportant applications in biological area, and optically driven micromachinesor motors.

Precise position- and angular-controllable optical trapping and manipulation via a single vortex-pair beam