大气流强度分布沿着由纵向结构的光束探测的传播路径
Huibin Zhou1, Xinzhou Su2, Yuxiang Duan2
1Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA. huibinzh@usc.edu.
Nature communications
|August 5, 2023
概括
这项研究引入了一种新的方法,用于使用结构化光束测量长距离的大气流强度. 这种技术为小型设备提供了更好的准确性和潜力,增强了大气流监测.
科学领域:
- 光学和光子学 在光学和光子学.
- 大气科学 大气科学
- 光学工程是指光学工程.
背景情况:
- 大气流在各种应用中带来了重大挑战,需要精确测量其强度.
- 现有的探测流的方法往往受范围或收发器尺寸的限制.
- 光学束与大气相互作用,使得纵向流变化的探测成为可能.
研究的目的:
- 开发和演示一种用于探测大气流强度在长距离上的新技术.
- 为了克服以前的方法在范围和收发器大小方面的局限性.
- 使用纵向结构的光束来增强流传感.
主要方法:
- 采用多个,顺序传输的贝塞尔-高斯波束,具有不同的参数.
- 利用距离变化的光束宽度来诱导依赖流的模态合.
- 在延长路径上模拟和实验验证方法.
主要成果:
- 模拟显示在10公里路径上的低误差 (<0.3dB),具有显著的流变化 (高达30dB).
- 实验演示在两个模拟的流区域 (~15 dB变化) 中实现了低误差 (<0.8 dB).
- 拟议的方法证明了对不同流条件的稳定性.
结论:
- 开发的技术有效地探测大气流强度在长距离.
- 与现有方法相比,这种方法提供了更远程传感或收发器尺寸缩小的潜力.
- 结构化光束的使用为先进的大气监测提供了一个有希望的途径.
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