| 离轴球形粒子对高斯波束的散射光通量的计算 |
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| 引用本文： | 王莲芬,李育新,李正亮,郑立林.离轴球形粒子对高斯波束的散射光通量的计算[J].光学技术,2006,32(Z1). |
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| 作者姓名： | 王莲芬 李育新 李正亮 郑立林 |
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| 摘 要： | 利用矢量球谐函数展开的方法,研究了离轴球形粒子对椭圆高斯波束的散射。根据其远区散射场的形式,得出了归一化散射场的斯托克斯参量(散射强度)与颗粒直径、折射率以及散射角的关系。建立了计算离轴球形粒子对高斯波束散射通量的解析模型,计算了散射光在任意散射方向上的光通量,得到了前向任意立体角内散射通量的计算公式,为激光散射探测提供了理论依据。
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| 关 键 词： | 大气散射 激光探测 光通量 椭球粒子 高斯波束 |
The scattering luminous flux calculation of off-axis spherical particle to Gauss beam |
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| WANG Lian-fen,LI Yu-xin,LI Zheng-liang,ZHENG Li-lin.The scattering luminous flux calculation of off-axis spherical particle to Gauss beam[J].Optical Technique,2006,32(Z1). |
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| Authors: | WANG Lian-fen LI Yu-xin LI Zheng-liang ZHENG Li-lin |
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| Abstract: | The scattering feature of off-axis spherical particle to ellipse Gauss beam is represented as vector spherical harmonics.According to the form of far off scattering,the relation of Stokes parameter(scattering intensity)with particle diameter and refractive index and scattering angle is obtained.The model of calculating the scattering flux of off-axis spherical particle to Gauss beam is established.The scattering luminous flux on the scattering direction and the scattering flux in any forward solid angle is calculated.So a theory base for laser scattering detection is provided. |
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| Keywords: | atmospheric scattering laser detection luminous flux prolate sphere particle Gauss beam |
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