Zhou Chen, Yang Ping
Opt Express. 2015 May 4;23(9):11995-2003. doi: 10.1364/OE.23.011995.
At a wavelength corresponding to negligible electromagnetic absorption by ice, rigorous numerical simulations based on solving Maxwell's equations show a backscattering peak associated with the phase function of randomly oriented hexagonal ice crystals. The backscattering peak, which has important implications to the interpretation of lidar observations, exists in the cases of smooth regular, smooth irregular, and roughened hexagonal ice crystals. The backscattering peak width is inversely proportional to the size parameter. The theoretical prediction of the backscattering peak is consistent with observations.
在对应于冰的电磁吸收可忽略不计的波长下，基于求解麦克斯韦方程组的严格数值模拟表明，存在一个与随机取向的六边形冰晶的相位函数相关的后向散射峰。后向散射峰存在于光滑规则、光滑不规则和粗糙六边形冰晶的情况中，这对激光雷达观测的解释具有重要意义。后向散射峰宽度与尺寸参数成反比。后向散射峰的理论预测与观测结果一致。
