Propagation dynamics of dual-layer twisted array sources modulated by strongly nonlocal nonlinear media

Shaohua Zhang, Meng Zhang and Jun Qu

Chaos, Solitons & Fractals, 2025, vol. 199, issue P2

Abstract: Researchers have extensively investigated beam propagation theory in strongly nonlocal nonlinear media (SNNM), and they have validated and applied the corresponding ABCD matrix theory. In this study, we propose modified ABCD matrix parameters that rigorously satisfy optical propagation theory, enabling effective coupling with complex optical systems. Based on this theoretical model, we numerically simulate and systematically investigate the propagation dynamics of dual-layer twisted array beams. In the propagation dimension, we reveal a state-switching mechanism among “self-focusing, self-stabilization, and self-divergence” governed by critical parameters, and discover an SNNM-free space interface-induced beam rotation reversal phenomenon. By precisely tuning the off-axis parameters of individual solitons, one can actively design the array's structural configuration. Numerical simulations further demonstrate characteristic dynamic behaviors of dual-layer twisted array breathing solitons. These findings are expected to provide a theoretical foundation for the functional applications of SNNM and dual-layer twisted array beams.

Keywords: Nonlocal media; Twisted breathing and solitons array; Trajectory and shape controlling; Propagation characteristics (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:199:y:2025:i:p2:s0960077925008434

DOI: 10.1016/j.chaos.2025.116830

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