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. 2009 Nov 23;17(24):21891-6.
doi: 10.1364/OE.17.021891.

Devil's vortex-lenses

Walter D Furlan  1 , Fernando Giménez, Arnau Calatayud, Juan A Monsoriu
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Free article

Devil's vortex-lenses

Walter D Furlan et al. Opt Express. .
Free article

Abstract

In this paper we present a new kind of vortex lenses in which the radial phase distribution is characterized by the "devil's staircase" function. The focusing properties of these fractal DOEs coined Devil's vortex-lenses are analytically studied and the influence of the topological charge is investigated. It is shown that under monochromatic illumination a vortex devil's lens give rise a focal volume containing a delimited chain of vortices that are axially distributed according to the self-similarity of the lens.

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