论文标题
具有任意拓扑电荷跳跃的异常多螺距分数涡流梁
Anomalous multi-ramp fractional vortex beams with arbitrary topological charge jumps
论文作者
论文摘要
传统的分数涡流梁是众所周知的“跳跃”梁：也就是说，随着源的有效拓扑充电，它们的净拓扑充电会跳高，而源则是半数的。在这里，我们提出了一个异常的多斜率分数涡流（AMRFV）光束。与传统的分数涡流梁不同，AMRFV梁可以设计为在源充电的任何临界阈值下的拓扑充电中任意跳跃。我们使用模拟浏览AMRFV梁的一些示例，并根据相奇异点的演变对多跳特征进行清晰的解释。
Traditional fractional vortex beams are well-known "jump" beams: that is, their net topological charge jumps by unity as the effective topological charge of the source passes a half-integer value. Here, we propose an anomalous multi-ramp fractional vortex (AMRFV) beam. Unlike the traditional fractional vortex beams, an AMRFV beam can be designed to have arbitrary jumps in topological charge at any critical threshold of the source charge. We walk through some examples of AMRFV beams using simulations and present a clear interpretation of the multi-jump characteristic based on the evolution of phase singularities.
