AI 中文总结
该研究探究携带轨道角动量的光子弹在贝塞尔结构非线性渐变折射率波导中的形成、稳定性与传播动力学，利用平方贝塞尔折射率分布实现其稳定，获多解族共存的特性，为非线性光局域化及先进光子应用提供新方向。
AI 中文摘要
我们研究了携带轨道角动量（涡旋）的光子弹在贝塞尔结构非线性渐变折射率波导中的形成、稳定性和传播动力学。这类波在均匀三维介质中易发生坍缩，我们证明，与传播方向正交平面内的平方贝塞尔折射率分布可提供稳定作用，该分布可充当波导或反波导势。我们获得了不同的解族，揭示了多种功率-传播常数关系图，表征了多解族的共存现象。我们在广泛的实验可及参数范围内分析了传播动力学。研究结果有助于理解多维环境中的非线性光局域化，并为结构化光在先进光子应用中的使用提供新可能。
英文摘要
We explore the formation, stability, and propagation dynamics of light bullets carrying orbital angular momentum (vorticity) in Bessel-structured nonlinear graded-index waveguides. While these waves are prone to the collapse in uniform three-dimensional media, we demonstrate that their stabilization is provided by a squared-Bessel index profile in the plane orthogonal to the propagation direction, which may play the role of the waveguiding or antiwaveguiding potential. Different solution families are obtained, revealing a variety of power-vs.-propagation-constant diagrams, characterizing the coexistence of multiple families. We analyze the propagation dynamics in a wide experimentally accessible parameter range. Our results contribute to the understanding of nonlinear light localization in multidimensional settings and suggest new possibilities for using structured light in advanced photonic applications.
Comments20 pages, 10 figures. To be published in Optical and Quantum Electronics
