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中文摘要：
依据球形粒子Mie散射理论,推导出在平面波入射情况下球形粒子的磁场表达式。将粒子散射振幅和微分散射截面从相对运动坐标系变换到静止坐标系,给出具有任意运动速度粒子的散射振幅和微分散射截面,理论模型具有自洽性。数值计算了波长为1.06μm激光入射情况下,金属和介质两种粒子微分散射截面随粒子尺寸、散射天顶角以及粒子相对运动速度的变化情况。针对稀薄粒子的随机分布,给出了粒子静止和运动情况下微分散射截面统计平均值随散射天顶角的变化。
英文摘要：
The magnetic field of spherical particle was deduced under incident plane wave according to the Mie scattering theory.The scattering amplitude function and differential scattered section of spherical particle were transformed from the relative moving coordinate system to static coordinate system by the coordinates and vectors transform.The differential scattered section of spherical particles which had arbitrary velocities were proposed.The theories were self-contained,and the theoretical results were general.The numerical results show that the differential scattered section of moving metal and medium spherical particles changed with their dimensions,scattering zenith angles and different velocities with incidence laser wavelength of 1.06 μm.After discussing of the differential scattered section of the static are moving spherical particles,the statistical differential scattered section of rarefied particles,which had random distribution with different scattering zenith angles was further studied.
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