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This research aims to explore lensless Airy-type optical beams generated by Fresnel propagation and their behavior in turbulence.

July 29, 2026PhotonicsOpen Access

Lensless Formation and Turbulence Response of Airy-Type Beams Generated by Direct Fresnel Propagation

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We investigate lensless Airy-type beams formed by Fresnel propagation and their performance under turbulence, indicating varied detection scenarios.

This research aims to explore lensless Airy-type optical beams generated by Fresnel propagation and their behavior in turbulence.
Derived a closed-form expression from the scalar Fresnel diffraction integral.
Compared propagation characteristics of conventional and lensless Airy beams under turbulent conditions using phase screens.
Evaluated performance metrics, including scintillation and fiber coupling efficiency.
The lensless beam showed lower scintillation at the maximum intensity point compared to the conventional beam.
Both beams achieved comparable aperture collected power in various scenarios.
The conventional Airy beam exhibited higher coherent fiber coupling efficiency.

Berškys et al. (2026) studied this question.

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We investigate lensless Airy-type beams formed by Fresnel propagation and their performance under turbulence, indicating varied detection scenarios.