Matrix of Correlations between the Gradients of the Phase of the Light Wave as a Way to Measure the Principal Parameters of Turbulence

IF 1.4 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2024-10-11 DOI:10.1134/S0021364024603282
V. A. Bogachev, I. V. Kolokolov, V. V. Lebedev, F. A. Starikov
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Abstract

The diffraction of a light wave by fluctuations in the refractive index in a turbulent medium leads to its distortions. Their analysis allows one to extract the main parameters of turbulence. In this paper, we propose a new method based on measurements of the correlation function of the gradients of the light wave phase, which allows us to independently find the Fried parameter \({{r}_{0}}\) and, then, the outer scale of turbulence L0. The method has been successfully tested on measurement data obtained during the passage of laser radiation through a gaseous medium with artificially created turbulence.7

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测量湍流主要参数的光波相位梯度相关矩阵
光波在紊流介质中受折射率波动的衍射导致其畸变。他们的分析使人们能够提取出湍流的主要参数。在本文中,我们提出了一种基于测量光波相位梯度相关函数的新方法,该方法使我们能够独立地找到Fried参数\({{r}_{0}}\),然后找到湍流的外部尺度L0。该方法已成功地在激光辐射通过具有人为湍流的气体介质时获得的测量数据上进行了测试
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来源期刊
JETP Letters
JETP Letters 物理-物理:综合
CiteScore
2.40
自引率
30.80%
发文量
164
审稿时长
3-6 weeks
期刊介绍: All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
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