Controllable rotation of multiplexing elliptic optical vortices

Abstract

We proposed a highly efficient phase modulation method for generating elliptic optical vortex with an arbitrary controllable rotation angle, that can be recognized as a controllable degree of freedom. Transformation matrix and rotation matrix were used to realize the modulation of light field. Numerically and experimentally demonstrated the control capability of Bessel (BS) beam and Higher-order Laguerre-Gauss (HLG) vortices modes. Rotation angle β, elliptic degree e and multiplexing elliptic optical vortices could be freely modulated by using the proposed method. It is important for the progress of programmable optical tweezers, as well as automated optical transport operations of interest in colloidal physics and biophysics. It also can be applied in high-dimensional and multiphoton quantum experiments.