The similarity between the light-scattering pattern of a particle in the near-forward direction and diffraction from the particle’s silhouette is investigated. Images of irregularly shaped free-flowing aerosol particles are obtained from digital hologram measurements, which are then binarized to yield a silhouette. Application of Huygens’s principle to the silhouette generates an approximate scattering pattern, which when compared to the true measured pattern shows good agreement for particles much larger than the wavelength of light.

中文翻译：

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从数字全息图生成气溶胶粒子的光散射图案

研究了粒子在近前方向上的光散射图案与来自粒子轮廓的衍射之间的相似性。从数字全息测量获得不规则形状的自由流动气溶胶颗粒的图像，然后将其二值化以生成轮廓。惠更斯原理在轮廓上的应用会产生一个近似的散射图，与真实测量的图相比，该散射图对于远大于光波长的粒子显示出良好的一致性。