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Figure 1

From: Catenary nanostructures as compact Bessel beam generators

Figure 1

Schematic of the Bessel beam generation process in catenary arrays.

(a) Phase pattern of a Bessel beam with l = 1. (b) Horizontal phase distributions in [0, 2π] under illumination of circular polarizations for a catenary aperture. (c,d) Sketch of the Bessel beam generators for l = 2 and 3.

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