Sudden autofocusing of superlinear chirp beams

This paper theoretically, numerically and experimentally investigates the autofocusing properties of chirp beams with arbitrary power law dependence on the radius. It was demonstrated that the use of superlinear chirp (radial phase dependence with a power greater than 2) provides faster and more abr...

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Bibliographic Details
Published in:Journal of optics (2010) 2018-02, Vol.20 (2), p.25605
Main Authors: Khonina, S N, Porfirev, A P, Ustinov, A V
Format: Article
Language:English
Subjects:
autofocusing beams
chirp-beams
superlinear chirp
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Summary:This paper theoretically, numerically and experimentally investigates the autofocusing properties of chirp beams with arbitrary power law dependence on the radius. It was demonstrated that the use of superlinear chirp (radial phase dependence with a power greater than 2) provides faster and more abrupt focusing than circular Airy beams. The use of two- and three-parametric chirp beams allows the effective control of the autofocusing properties of circular beams in various applications in optics and photonics.
ISSN:2040-8978
2040-8986
DOI:10.1088/2040-8986/aaa075