粗糙介质面对高斯波束的散射
RESEARCH ON THE SCATTERING OF AN INCIDENT GAUSSIAN BEAM
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摘要: 该文研究了当入射场为光波束时粗糙介质面的散射问题。利用波束的平面波谱展开方法及基尔霍夫近似理论导出了散射场和非相干截面计算公式,并对后向非相干截面进行了数值计算,最后对其结果进行了分析讨论。
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关键词:
- 波束; 散射截面; 粗糙面散射
Abstract: The problem of scattering of a Gaussian beam by a rough dielectric surface is studied. By using the plane wave spectrum expansion and Kirchhoff approximation theory, the formulas of scattered field and the incoherent scattering cross-section for Gaussian beam illumination of a rough surface are derived. And the numerical results for incoherent back scattering cross-section are given. Finally, the above results are analyzed and discussed. -
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