Transformation of ring-Airy beams during efficient harmonic generation

We theoretically study the evolution of ring-Airy beams during harmonic generation with the focus on the regime of pump energy depletion. We demonstrate that in this regime, ring-Airy beams still preserve their abrupt autofocusing properties, while transforming to a multiple ring-Airy structure. A s...

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Bibliographic Details
Published in:Optics letters 2019-06, Vol.44 (12), p.2974-2977
Main Authors: Fedorov, V Yu, Papazoglou, D G, Tzortzakis, S
Format: Article
Language:English
Subjects:
Beams (radiation)
Depletion
Harmonic generations
Transformations
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Summary:We theoretically study the evolution of ring-Airy beams during harmonic generation with the focus on the regime of pump energy depletion. We demonstrate that in this regime, ring-Airy beams still preserve their abrupt autofocusing properties, while transforming to a multiple ring-Airy structure. A similar transformation is observed on the beam of the generated harmonic. We suggest a simple analytical model that explains and predicts with precision our numerical findings.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.44.002974