球形粒子与手征平面的耦合散射  

Coupling Scattering Between Spherical Particle and Chiral Plane

作　　者：方玉龙 孙玉发[2] 张华永[2] FANG Yulong;SUN Yufa;ZHANG Huayong(Department of Medicine,Huangshan Vocational and Technical College,Huangshan 245000,China;School of Electronics and Information Engineering,Anhui University,Hefei 230039,China)

机构地区：[1]黄山职业技术学院医学系,安徽黄山245000 [2]安徽大学电子信息工程学院,安徽合肥230039

出　　处：《宿州学院学报》2021年第6期8-12,共5页Journal of Suzhou University

基　　金：安徽省高校自然科学研究重点项目(KJ2017A905)。

摘　　要：在平面电磁波照射下,对手征平面与其上方的介质球形粒子产生复杂的耦合散射特性进行研究。在不考虑球形粒子存在的情况下计算手征平面对平面电磁波的反射系数。把入射平面波和反射波作为引起耦合散射的激励源,通过把耦合散射场和介质球内部的场用球矢量波函数展开,并结合球矢量波函数用圆柱矢量波函数的积分来表示的关系式,以及电磁场边界条件,推导出求解展开系数的线性方程组。求解方程组得到展开系数,进而求出耦合散射场和微分散射截面,并进行了简要讨论。In this paper,the characteristics of the complex coupling scattering produced by chiral plane and the spherical particles above it are studied under the irradiation of plane electromagnetic wave.The reflection coefficient of chiral plane to plane electromagnetic wave is calculated without considering the existence of spherical particles.By taking the incident and reflected plane waves as an excitation source,the coupling scattering fields and internal fields are expanded in terms of spherical vector wave functions.Combined with the spherical vector wave function expressed by the integral of the cylindrical vector wave function and boundary conditions of electromagnetic fields,a linear system of equations consisting of those expansion coefficients is derived.By solving the equations to obtain the expansion coefficients,the coupling scattering fields and differential scattering cross section are obtained,followed by a concise discussion.

关 键 词：耦合散射 手征平面 球形粒子 

分 类 号：O441.4[理学—电磁学] O436.2[理学—物理]