We present a unique method for experimentally generating multiple vortices by way of a devil’s vortex lens combined with a Fresnel lens using a spatial light modulator. These lenses have the multifocal properties of fractal zone plates combined with the orbital angular momentum of a spiral phase plate and can be tailored to fit within a small space on an optical bench. Results are presented alongside numerical simulations, demonstrating the robust nature of both the experimental method and the predictive power of the Huygens–Fresnel wavelet theory.
© 2012 Optical Society of America
Diffraction and Gratings
Original Manuscript: February 23, 2012
Revised Manuscript: April 19, 2012
Manuscript Accepted: April 19, 2012
Published: June 14, 2012
Mark Mitry, Danielle C. Doughty, Jan L. Chaloupka, and Matthew E. Anderson, "Experimental realization of the devil’s vortex Fresnel lens with a programmable spatial light modulator," Appl. Opt. 51, 4103-4108 (2012)