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Shengchuang Bai

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Proceedings Article | 16 October 2023 Paper

Propagation properties of helical Ince–Gaussian beam in oceanic turbulence

Mingming Zhang, Zhengcheng Hou, Shengchuang Bai, Yongzhuang Li, Jun Liu, Youyou Hu

Proceedings Volume 12792, 127920M (2023) https://doi.org/10.1117/12.2689204

KEYWORDS: Scintillation, Turbulence, Beam propagation method, Beam wander, Atmospheric propagation, Phase distribution, Materials properties, Atmospheric optics, Optical simulations, Fourier transforms

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The propagation properties of Helical Ince-Gaussian (HIG) beams in oceanic turbulence are analyzed using the random phase screen method. A comparative analysis of the spot centroid wander and the scintillation indices of different order HIG modes as a function of propagation distance has been performed. A comparative analysis of the spot centroid wander and the scintillation indices of different order HIG modes as a function of propagation distance has been performed. The results indicate that compared to the LG_0,1 mode, the HIG mode with order p=m⪆1 has a smaller standard deviation of spot centroid wander and scintillation index during propagation. Especially, the standard deviation of the spot centroid wander decreases with the increase of the HIG mode’s order, while the scintillation indices of odd-order HIG_m,m beams are generally higher than those of even-order HIG_m,mmodes. In addition, the scintillation index of the odd-order HIG_m,m beam decreases with the increase of the ellipticity parameter, while that of the even-order HIG_m,m beam increases. Finally, we conclude that under the influence of oceanic turbulence, the HIG mode has a lower scintillation index than the IG mode at the same propagation distance. The results have significant implications for the oceanic applications of the HIG modes.

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