Zeng Jinfu, Cheng Shubo, Liu Shuo, Zhang Geng, Tao Shaohua, Yang Wenxing
Opt Express. 2022 Mar 14;30(6):9924-9933. doi: 10.1364/OE.454069.
We investigate the dynamic evolution and self-healing properties of the bored helico-conical beams with different filter parameter S in this paper. The relative error coefficient, D, is utilized to judge the self-healing effect of the bored helico-conical beam. The result demonstrates that the self-healing effect of the bored beams will be perfect when D approaches to 0. We also discuss the influence of the filter parameter S on the effective self-healing distance theoretically and experimentally. The result demonstrates that the effective self-healing distance decreases exponentially with the increasing filter parameter S. Moreover, the corresponding transverse energy flows of the bored beams are analyzed. The experimental results of the dynamic evolution for the bored helico-conical beams agree with the simulation ones well.
本文研究了具有不同滤波参数S的钻孔螺旋锥形光束的动态演化和自愈特性。利用相对误差系数D来判断钻孔螺旋锥形光束的自愈效果。结果表明,当D趋近于0时,钻孔光束的自愈效果将达到完美。我们还从理论和实验两方面讨论了滤波参数S对有效自愈距离的影响。结果表明,有效自愈距离随滤波参数S的增加呈指数下降。此外,还分析了钻孔光束相应的横向能流。钻孔螺旋锥形光束动态演化的实验结果与模拟结果吻合良好。