叠加态涡旋光束经旋转随机粗糙表面的频移特性

吕宏; 党磊; 贺蕊

doi:10.12263/DZXB.20201455

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叠加态涡旋光束经旋转随机粗糙表面的频移特性

无线光通信及其组网技术 | 更新时间：2025-12-08

- 叠加态涡旋光束经旋转随机粗糙表面的频移特性
- The Characteristics of Frequency Shift of Superposition Vortex Beams Passing through a Rotating Random Rough Surface
- 电子学报 2021年49卷第10期页码：1969-1974
- 作者机构：
  
  西安工业大学光电工程学院，陕西西安 710021
- 作者简介：
  
  [ "吕宏男，1975年生，山西运城人，现为西安工业大学光电工程学院副教授，主要研究方向为激光大气传输与测控技术. E-mail：lvhong@xatu.edu.cn" ]
  [ "党磊男，1996年生，陕西西安人，现为西安工业大学在读硕士研究生，主要研究方向为无线光通信与测控技术. E-mail：810446385@qq.com" ]
  [ "贺蕊（通信作者）女，1997年生，陕西咸阳人，现为西安工业大学在读硕士研究生，主要研究方向为光场传输与调控. E-mail：2279443946@qq.com" ]
- 基金信息：
  
  陕西省自然科学基础研究计划项目资助(2019JM-470);陕西省教育厅科研计划资助(18JS048)
- DOI：10.12263/DZXB.20201455
  中图分类号： TN929.1;
- 收稿：2020-12-17，
  
  修回：2021-05-12，
  
  纸质出版：2021-10-25
- 稿件说明：
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吕宏,党磊,贺蕊.叠加态涡旋光束经旋转随机粗糙表面的频移特性[J].电子学报,2021,49(10):1969-1974.

L Hong,DANG Lei,HE Rui.The Characteristics of Frequency Shift of Superposition Vortex Beams Passing through a Rotating Random Rough Surface[J].ACTA ELECTRONICA SINICA,2021,49(10):1969-1974.
吕宏,党磊,贺蕊.叠加态涡旋光束经旋转随机粗糙表面的频移特性[J].电子学报,2021,49(10):1969-1974. DOI： 10.12263/DZXB.20201455.

L Hong,DANG Lei,HE Rui.The Characteristics of Frequency Shift of Superposition Vortex Beams Passing through a Rotating Random Rough Surface[J].ACTA ELECTRONICA SINICA,2021,49(10):1969-1974. DOI： 10.12263/DZXB.20201455.

摘要

论文基于涡旋光束传输特性及光散射理论，研究了叠加态涡旋光束经旋转随机粗糙表面的场分布及干涉特性.对拓扑荷值大小相同、符号相反的两束涡旋光进行了叠加生成仿真及实验，利用角谱衍射理论，分析了旋转随机粗糙表面均方根粗糙度对光束传输的影响，数值计算了不同拓扑荷值的叠加态涡旋光束经旋转随机粗糙表面后，与参考光进行干涉得到不同转速下归一化强度值随时间变化的曲线，并通过光强-时间函数间接求得频移量

再反演得到旋转目标的转速.结果表明：通过仿真曲线的周期反演频率，当转速

分别为2π/3 rad/s，2π rad/s，10π/3 rad/s时，对应的频移Δ

分别为2/3Hz，2Hz，10/3Hz.研究结果可以为叠加涡旋光的调控及应用提供理论参考.

Abstract

Based on the transmission characteristics of vortex beams and light scattering theory

the field distribution and interference characteristics of superposition vortex beams passing through the rotating random rough surface are studied. Two vortex beams with the same topological charge value and opposite signs are used for simulation and experiment of superimposition generation. Using angular spectrum diffraction theory

the influence of the root-mean-square roughness of the rotating random rough surface on the beam transmission is analyzed. As the superposition vortex beams with different topological charges pass through the rotating random rough surface and interfere with the reference light

the time-dependent curve of normalized intensity values at different rotational speeds can be obtained through numerical calculation. Then the frequency shift can be indirectly obtained by light intensity-time function and the speed of rotating target can be obtained through inversion. The results show that: the frequency is inverted by the period of the simulation curve

and when the rotational speed

is 2π/3 rad/s

2π rad/s

10π/3 rad/s

the corresponding frequency shift Δ

is 2/3Hz

2Hz

10/3Hz

respectively. The results of this research can provide a theoretical reference for the regulation and application of superposition vortex beams.

关键词

Keywords

references

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