Abstract
Turbulence in complex environments such as the atmosphere and biological media has always been a great challenge to the application of beam propagation in optical communication,optical trapping and manipulation.To overcome this challenge,this study comprehensively investigates the robust propagation of traditional Gaussian and autofocusing beams in turbulent environments.In order to select stable beams that exhibit high intensity and high field gradient at the focal posi-tion in complex environments,Kolmogorov turbulence theory is used to simulate the propagation of beams in atmospheric turbulence based on the multi-phase screen method.We systematically analyze the intensity fluctuations,the variation of the coherence factor and the change in the scintillation index with propagation distance.The analysis reveals that the intensity fluctuations of autofocusing beams are significantly smaller than those of Gaussian beams,and the coherence of autofocusing beams is better than that of Gaussian beams under turbulence.Moreover,autofocusing beams exhibit less os-cillation than Gaussian beams,indicating that autofocusing beams propagate in complex environments with less distortion and intensity fluctuation.Overall,this work clearly demonstrates that autofocusing beams exhibit higher stability in prop-agation compared with Gaussian beams,showing great promise for applications such as optical trapping and manipulation in complex environments.
基金项目
国家自然科学基金(11604058)
广西自然科学基金(2020GXNSFAA297041)
广西自然科学基金(2023JJA110112)
广西壮族自治区研究生教育创新计划(YCSW2023083)
四川省科技计划(2023NSFSC0460)
NETL
NSTL
万方数据