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圆艾里高斯涡旋光束合成的矢量光束在大气中的传输特性
发表时间：2018-04-13 浏览量：2040 下载量：238
| 全部作者： | 狄颢萍，张淇博，周木春，辛煜，赵琦 |
| 作者单位： | 南京理工大学电子工程与光电技术学院 |
| 摘 要： | 采用功率谱反演法构造各向异性非Kolmogorov湍流随机相位屏，并利用多层相位屏法模拟研究由一对拓扑荷值为+1的左旋圆艾里高斯涡旋光束和拓扑荷值为1的右旋圆艾里高斯涡旋光束合成的矢量光束在大气湍流中的传输特性。数值模拟研究发现，矢量光束的漂移值随着光束的指数截断因子、横向尺度及大气湍流折射率结构常数的增大而增大，并且传输距离越远，矢量光束受湍流影响越严重。此外，通过对比分析该矢量光束和圆艾里光束、圆艾里高斯涡旋光束在相同条件下的漂移值，发现相对于圆艾里光束，圆艾里高斯涡旋光束和矢量光束受湍流的影响较小。 |
| 关 键 词： | 光学；功率谱反演法；圆艾里高斯涡旋光束；矢量光束；漂移 |
| Title： | Characteristics of the vector beams generated by overlapping the ring Airy Gaussian vortex beams propagating in turbulence |
| Author： | DI Haoping, ZHANG Qibo, ZHOU Muchun, XIN Yu, ZHAO Qi |
| Organization： | School of Electronic and Optical Engineering, Nanjing University of Science and Technology |
| Abstract： | Using power spectrum inversion method to generate the anisotropic non-Kolmogorov turbulence phase screens, the propagation characteristics of the vector beam generated by overlapping the left-handed ring Airy Gaussian vortex beam with topological charge of +1 and right-handed ring Airy Gaussian vortex beam with topological charge of 1 in turbulence in simulation are studied by multiple phase screens method. It is proved that the drifts of the vector beams increase with the increasing exponential truncation factors, transverse scales and the atmospheric refractive index structure parameter of the turbulence. The further propagation distance is, the more serious effect of the turbulence will be on the vector beam. Moreover, comparing the drifts of the vector beam with the ring Airy beam and the ring Airy Gaussian vortex beam in the same conditions, the result shows that the ring Airy Gaussian vortex beam and the vector beam experience less influence by turbulence. |
| Key words： | optics; power spectrum inversion method; ring Airy Gaussian vortex beams; vector beams; drifts |
| 发表期数： | 2018年4月第7期 |
| 引用格式： | 狄颢萍，张淇博，周木春，等. 圆艾里高斯涡旋光束合成的矢量光束在大气中的传输特性[J]. 中国科技论文在线精品论文，2018，11（7）：711-717. |
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