AI 中文总结
研究通过可控不对称性增强圆形艾里导数光束的突然自聚焦和焦深，可使焦深大幅扩展、自聚焦能力提升，实验与模拟吻合良好，所产生的光束在多领域有应用前景。
AI 中文摘要
我们通过可控不对称性证明了在圆形艾里导数光束中同时增强突然自聚焦和焦深（DOF）。可控不对称性使多个离散自聚焦事件合并为单个拉长的焦点区域，从而增强自聚焦能力和焦深。焦深最多可扩展400%，自聚焦能力提高32%，焦斑尺寸约为32μm；自聚焦能力最多可进一步增强193%，焦斑尺寸约为56μm，同时保持几乎相同的焦深。实验结果与数值模拟吻合良好。由此产生的不对称圆形艾里导数光束（ACADBs），结合了强大的突然自聚焦和极深焦深，在光捕获、光通信、微制造和生物医学成像等方面具有广阔应用前景。
英文摘要
We demonstrate simultaneous enhancement of abrupt autofocusing and depth-of-focus (DOF) in circular Airy derivative beams through controlled asymmetry. The controlled asymmetry enables multiple discrete autofocusing events to merge into a single elongated focal region, thereby enhancing both the autofocusing ability and the DOF. The DOF is extended by up to 400% with a 32% improvement in autofocusing ability and a ~ 32 μm focal spot size, whereas the autofocusing ability can be further enhanced by up to 193% with a ~ 56 μm focal spot size, while maintaining nearly the same DOF. Experimental results show good agreement with numerical simulations. The resulting asymmetric circular Airy derivative beams (ACADBs), combining strong abrupt autofocusing with extreme DOF, offer promising applications in optical trapping, optical communications, microfabrication, and biomedical imaging
Comments7 pages, 10 figures
