激光散射场理论及其应用

Theory of Laser Scattering Field and Its Applications

在薄层散射的基础上,研究了寻常散射和非常散射的差别,建立起了散射椭圆的模型。然后从薄层散射过渡到厚层散射,检测了激光在水中的散射场和退偏振度,并对前向散射和后向散射导出了简化的场强计算公式。公式中的常数—散射率成为评价激光散射场和退偏振的依据。本研究的结论直接对提高水中目标探测的信噪比有现实意义。

Based on water thin-layer scattering, the difference between the ordinary scattering and the extraordinary scattering is studied, setting up the model of scattering ellipse. Through the transition from water thin-layer scattering to thick-layer scattering, scattering field and depolarizability of laser in water are tested, and simplified field strength formulas for forward and backward scatterings are derived. The constant in the formulas-scattered power is regarded as basis for the evaluation of scattering field and depolarizability.