Abstract
An annular vortex of arbitrary integer topological charge can be obtained at the Fourier domain of appropriate phase diffractive optical elements. In this context we prove that the diffractive element that generates the vortex with maximum peak intensity has the phase modulation of a propagation-invariant th order Bessel beam. We discuss additional advantages of this phase element as annular vortex generator.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Rafael Paez-Lopez, Ulises Ruiz, Victor Arrizon, and Ruben Ramos-Garcia
Opt. Lett. 41(17) 4138-4141 (2016)
Junjie Yu, Changhe Zhou, Yancong Lu, Jun Wu, Linwei Zhu, and Wei Jia
Opt. Lett. 40(11) 2513-2516 (2015)
Pravin Vaity and Leslie Rusch
Opt. Lett. 40(4) 597-600 (2015)