Scattering characteristics of Bessel Gauss beam through bubble wakes of ship

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Authors: Jiao WANG, Kelin QIANG, Yingke Zhao, Xianghui WANG, Xuhua Tian, Zhenkun TAN
Cited by: 1
References: 12

Abstract

在海洋监测中,舰船尾流的识别与追踪具有重要研究价值。舰船尾流是复杂的混合体,研究较为困难,可利用蓝绿激光的海水穿透性能研究舰船气泡尾流的散射特性。本文基于广义洛伦兹Mie理论(Generalized Lorenz-Mie Theory,GLMT),结合积分局部近似方法,推导了贝塞尔高斯(Bessel-Gaussian,BG)光束的波束因子解析式,研究了BG光束经舰船气泡尾流后散射特性的变化情况。结果表明,对于单个球形气泡粒子,散射效率因子随尺度参数增大呈现峰值,且峰值随着光束拓扑荷数增大显著降低;同时,微分散射截面随光束拓扑荷数,束腰半径和圆锥角的增大而减小。在气泡尾流整体特性方面,同样观察到微分散射截面随光束拓扑荷数,束腰半径和圆锥角的增大而减小规律。本研究为舰船气泡尾流的散射特性研究提供了理论基础,对海洋监测目标探测等应用具有一定的理论指导意义。

Fields of Study & Subjects

Ocean Waves and Remote Sensing Orbital Angular Momentum in Optics Oil Spill Detection and Mitigation

Publication details

Journal / source
Acta Physica Sinica
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Volume
75
Issue
6
Publication date
1 January 2026