Using the Rayleigh approximation,we proposed a novel approach to solve the electromagnetic scattering properties of ellipsoidal particles with varying spatial orientation angles.The results showed that the spatial orientation angle had a significant impact on the electromagnetic scattering characteristics of spheroids.When the polar angle component of the orientation angle was at a partial angle,ellipsoidal particles showed a 25％increase in both scattering and absorption efficiency compared to their equal volume spheres.When the polar angle was 90°,these parameters decreased significantly by 20％.As the axial ratio increased,the ratio of scattering and absorption efficiency between rotating ellipsoids and their equal-volume spheres decreased exponentially.This ratio showed a linear increase at certain polar angles.By comparing the variations in absorption coefficient for ellipsoidal particle systems with evenly and normally distributed particle orientation angles,we demonstrated the importance of incorporating a parti-cle orientation angle distribution function into correlation calculations.
关键词
椭球粒子/等效介电张量/Rayleigh散射/取向角分布函数
Key words
ellipsoid particle/equivalent dielectric tensor/Rayleigh scattering/orientation angle distribu-tion function
维普
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