Two dimensional large-scale optical manipulation of microparticles by circular Airy beams with spherical and oblique wavefronts.

We experimentally demonstrate that spherical-and-oblique-phase-attached circular Airy beams (SOPA-CAB) can be used to realize the two dimensional large-scale optical manipulation of microparticles. The spherical and oblique phases are attached to CAB based on fourier-space generation method with the assistance of a spatial light modulator (SLM). By changing the hologram coded on the SLM through programming, the autofocusing focus of the SOPA-CAB goes further longitudinally compared with CAB and shifts freely on the focal plane, such that it can drive microparticles to move around on the plane within a maximum diameter of 108 microns. [ABSTRACT FROM AUTHOR]