Experimental realization of the devil's vortex Fresnel lens with a programmable spatial light modulator.
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.
Department of Physics, San Diego State University, San Diego, California 92182, USA.
Mark
M
Mitry
Danielle C
DC
Doughty
Jan L
JL
Chaloupka
Matthew E
ME
Anderson