Generating a Bessel-Gaussian beam for the application in optical engineering.
Generating a Bessel-Gaussian beam for the application in optical engineering.
复制标题
生成用于光学工程的贝塞尔-高斯光束
DOI：
10.1038/srep18665
复制
发表时间：
2015-12-22
影响因子：
4.6
通讯作者：
Xu X
中科院分区：
文献类型：
--
作者：
Chu X;Sun Q;Wang J;Lü P;Xie W;Xu X
贝塞尔光束是无衍射光束家族的重要成员，具有许多新颖的性质，在许多领域有着广泛的应用。然而，现有方法产生的贝塞尔光束源功率较低，只能在短距离内使用。本文提出了一种基于相干合成技术产生高功率贝塞尔光束的方法。并提出了利用不连续活塞相形成涡旋相的创新思路。为了验证该方法的有效性，对合成光束和贝塞尔-高斯光束在不同传输距离下的光强演化进行了研究和比较。同时，从已有的相干合成技术相关实验结果出发，讨论了该技术的实验实现。
Bessel beam is the important member of the family of non-diffracting beams and has many novel properties which can be used in many areas. However, the source of Bessel beam generated by the existing methods can be used only in a short distance due to its low power. In this paper, based on the coherent combining technology, we have proposed a method which can be used to generate a high-power Bessel beam. Even more, we give an innovative idea to form vortex phase by using discontinuous piston phase. To confirm the validity of this method, the intensity evolution of the combined beam and the Bessel-Gaussian beam at different propagation distance have been studied and compared. Meanwhile, the experimental realization has been discussed from the existing experimental result related to the coherent combining technology.