Different spatial distributions of optical vortices have been generated and characterized by implementing arrays of devil’s vortex lenses in a reconfigurable spatial light modulator. A simple design procedure assigns the preferred position and topological charge value to each vortex in the structure, tuning the desired angular momentum. Distributions with charges and momenta of the opposite sign have been experimentally demonstrated. The angular velocity exhibited by the phase distribution around the focal plane has been visualized, showing an excellent agreement with the simulations. The practical limits of the method, with interest for applications involving particle transfer and manipulation, have been evaluated.
© 2013 Optical Society of America
Diffraction and Gratings
Original Manuscript: May 28, 2013
Revised Manuscript: July 16, 2013
Manuscript Accepted: July 17, 2013
Published: August 8, 2013
Alejandro Calabuig, Sergio Sánchez-Ruiz, Lluís Martínez-León, Enrique Tajahuerce, Mercedes Fernández-Alonso, Walter D. Furlan, Juan A. Monsoriu, and Amparo Pons-Martí, "Generation of programmable 3D optical vortex structures through devil’s vortex-lens arrays," Appl. Opt. 52, 5822-5829 (2013)