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Chaotic self-trapped vortex beams driven by boundary modulation of thermally nonlocal nonlinear media

Author

Listed:
  • Wang, Zhi-Xuan
  • Li, Jun-Jie
  • Fu, Xiao-Ying
  • Zhao, Yuan
  • Zhang, Hui-Cong

Abstract

This paper numerically investigates breathing and chaotic behaviors of scalar vortex beams, as well as chaotic self-trapped and quasi-chaotic self-trapped behaviors of vector vortex beams, driven by abrupt boundary modulation of thermally nonlocal nonlinear media. For scalar vortex beams, we identify two distinct regimes: breathing behaviors at small modulation depths and chaotic behaviors at large modulation depths. For vector vortex beams in the stability region, an increased modulation drives the formation of chaotic self-trapped beams, whereas a decreased modulation leads to quasi-chaotic self-trapped beams due to boundary confinement. In instability regions, vector vortex beams can form various propagation states, such as quasi-chaoticon pair, chaoticon pair, and chaos pair. By tuning the modulation depth, we achieve the transition between solitons, breathers, chaotic self-trapped beams, and quasi-chaotic self-trapped beams. These findings provide systematic insights into the rich nonlinear dynamics of modulated vortex beams.

Suggested Citation

  • Wang, Zhi-Xuan & Li, Jun-Jie & Fu, Xiao-Ying & Zhao, Yuan & Zhang, Hui-Cong, 2025. "Chaotic self-trapped vortex beams driven by boundary modulation of thermally nonlocal nonlinear media," Chaos, Solitons & Fractals, Elsevier, vol. 199(P1).
  • Handle: RePEc:eee:chsofr:v:199:y:2025:i:p1:s0960077925007118
    DOI: 10.1016/j.chaos.2025.116698
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