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离心球对高斯波束的光散射及应用 被引量：2

Light Scattering of Gaussian Beam from an Eccentrically Stratified Dielectric Sphere and Application
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摘要 基于广义米氏理论研究了在轴离心球对高斯波束光散射特性.入射高斯波束的波束因子用积分区域近似法计算,散射场的展开系数由矢量球面波函数的加法定理并求解边界条件得到.以离心球为模型研究了单核生物细胞对高斯波束的散射特性并给出了相关数值模拟,讨论了离心距、波束的束腰半径和核的大小对散射强度角分布和散射、消光系数的影响. Based on the generalized Lorenz-Mie theory （GLMT）, the scattering characteristics of an eccentrically stratified dielectric sphere situated on axis of a Gaussian beam were studied. The beam shape coefficients were calculated by integral localized approximation. The translational addition theorems for spherical vector wave functions and the boundary conditions were used in solving the scattering coefficients. The eccentrically stratified dielectric sphere model was used to study the scattering characteristics of a nucleated biological cell illuminated by a Gaussian beam. Numerical results and the dependence of scattering characteristics on displacement distance,the beam waist radius and the size of the nucleus were discussed.
作者 颜兵 韩香娥 任宽芳 李祥震
机构地区 西安电子科技大学理学院物理系 UMR
出处 《光子学报》 EI CAS CSCD 北大核心 2009年第5期1268-1273,共6页 Acta Photonica Sinica
基金 教育部科学技术研究重点项目(106149)资助
关键词 电磁散射 离心球 加法定理 高斯波束 Electromagnetic scattering Eccentric sphere Addition theorems Gaussian beam
分类号 O43 [机械工程—光学工程]
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参考文献20

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共引文献13

同被引文献27

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光子学报
2009年 第5期

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