A method to construct spiral phase plates (SPPs) from quarter-wave plates and spatially variable half-wave plates (SVHWPs) is proposed. Optical vortices were experimentally generated by using SPPs made of polarization-dependent devices. The topological charge of the optical vortex can be also determined by the structure of the SVHWP and the polarization of the incident beam.
© 2014 Optical Society of America
Original Manuscript: January 29, 2014
Revised Manuscript: February 22, 2014
Manuscript Accepted: February 24, 2014
Published: March 25, 2014
Jingtao Xin, Kunjian Dai, Lei Zhong, Quanxin Na, and Chunqing Gao, "Generation of optical vortices by using spiral phase plates made of polarization dependent devices," Opt. Lett. 39, 1984-1987 (2014)