Self-bending symmetric cusp beams
Self-bending symmetric cusp beams
复制标题
自弯对称尖角梁
DOI：
10.1063/1.4937584
复制
发表时间：
2015-12-07
影响因子：
4
通讯作者：
Li, Yin-Mei
中科院分区：
文献类型：
--
作者：
Gong, Lei;Liu, Wei-Wei;Li, Yin-Mei
从理论和实验上提出了一种具有四个加速光强极大值的自弯曲对称尖光束。与已报道的正多边形光束不同，对称尖光束在传输过程中同时表现出自然自聚焦和自加速的特性。此外，这种光束在聚焦区具有精细的纵向针状结构，并具有较强的自愈能力。所有这些有趣的性质都得到了实验验证。特别地，重构光束的空间轮廓表现出具有四个连体弯曲臂的空间雕刻光学结构。因此，我们预期结构化光束将以令人惊讶的方式有益于光学引导和光流体学。(C)2015 AIP Publishing LLC.
A type of self-bending symmetric cusp beams with four accelerating intensity maxima is theoretically and experimentally presented. Distinguished from the reported regular polygon beams, the symmetric cusp beams simultaneously exhibit peculiar features of natural autofocusing and self-acceleration during propagation. Further, such beams take the shape of a fine longitudinal needle-like structure at the focal region and possess the strong ability of self-healing over obstacles. All these intriguing properties were verified experimentally. Particularly, the spatial profile of the reconstructed beam exhibits spatially sculpted optical structure with four siamesed curved arms. Thus, we anticipate that the structured beam will benefit optical guiding and optofluidics in surprising ways. (C) 2015 AIP Publishing LLC.