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Ring Airy‐Like Beams along Predesigned Parabolic Trajectories

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By phase‐modulating ring Airy Gaussian beams, ring Airy‐like beams propagating along predesigned parabolic trajectories are presented which combine the properties of accelerating beams and abruptly autofocusing beams analytically and numerically… Click to show full abstract

By phase‐modulating ring Airy Gaussian beams, ring Airy‐like beams propagating along predesigned parabolic trajectories are presented which combine the properties of accelerating beams and abruptly autofocusing beams analytically and numerically for the first time. The enhancement of the quadratic term ratio α shortens the autofocus distance and increases the slope of the beams after autofocusing. Interestingly, the main lobe tends to break into pieces as α increases and the possible reasons have been discussed. Furthermore, the distribution factor β and the radius of the primary r0 can prominently affect the autofocus distance and the intensity at the focal point but do not change the slope of the beams after the autofocusing. In addition, the self‐healing properties are validated to be retainable while RAiG beams via predesigned parabolic trajectories with various α.

Keywords: like beams; along predesigned; parabolic trajectories; predesigned parabolic; airy like; ring airy

Journal Title: Annalen der Physik
Year Published: 2020

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