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Devil's vortex-lenses
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DOI：10.1364/OE.17.021891.png)
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Abstract
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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. (C) 2009 Optical Society of America
Keywords:
FRACTAL ZONE PLATES
PHASE SINGULARITIES
VARIABLE LACUNARITY
FOCUSING PROPERTIES
LIQUID-CRYSTAL
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IF:
3.3
Papers:
6.1W
Citations:
14.3W
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Optical vortex beam shaping by use of highly efficient irregular spiral phase plates for optical micromanipulation.png)
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