研究目的
To investigate the effect of anisotropic non-Kolmogorov turbulence on the evolution behavior of average intensity and coherent vortices for Gaussian Schell-model vortex beams.
研究成果
The evolution behavior of intensity and coherent vortices of GSM vortex beams in anisotropic non-Kolmogorov turbulence depends on turbulence parameters (effective anisotropic factor, generalized exponent factor, structure constant) and beam parameters (waist width, wavelength, correlation length). Larger anisotropic factors, exponent factors, and correlation lengths slow the evolution, while smaller structure constants reduce turbulence effects, indicating that anisotropy in turbulence mitigates its impact on beam propagation.
研究不足
The study is theoretical and computational, lacking experimental validation. It assumes specific turbulence models and beam properties, which may not capture all real-world complexities. The analysis is limited to GSM vortex beams with topological charges of ±1.
1：Experimental Design and Method Selection:
The study uses theoretical modeling based on the extended Huygens–Fresnel principle and the power spectrum of anisotropic non-Kolmogorov turbulence. Analytical expressions for cross-spectral density and average intensity are derived. Numerical simulations are employed to analyze evolution behavior.
2：Sample Selection and Data Sources:
No physical samples; the work is computational, using derived equations and parameters such as turbulence factors and beam properties.
3：List of Experimental Equipment and Materials:
No specific equipment listed; the study relies on computational tools for numerical simulations.
4：Experimental Procedures and Operational Workflow:
Derive analytical expressions, set parameters (e.g., anisotropic factor, exponent factor, structure constant, beam waist, wavelength, correlation length), perform numerical calculations to simulate propagation and analyze intensity and vortex evolution.
5：Data Analysis Methods:
Numerical simulation methods are used to compute and plot intensity distributions and coherent vortex positions; statistical analysis is implied through parameter variation.
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