关于大颗粒Mie散射与Fraunhofer衍射问题的分析比较  

Comparison and analysis of Mie scattering and Fraunhofer diffraction of large particles

作　　者：杨晔[1] 张镇西[1] 蒋大宗[1] 

机构地区：[1]西安交通大学生物医学工程研究所

出　　处：《激光技术》1998年第1期18-21,共4页Laser Technology

摘　　要：利用Ｍｉｅ散射与Ｆｒａｕｎｈｏｆｅｒ衍射理论的数值计算，对球形颗粒的Ｍｉｅ散射和Ｆｒａｕｎｈｏｆｅｒ衍射做了大量的计算和分析比较，提出了大颗粒的Ｆｒａｕｎｈｏｆｅｒ衍射近似替代Ｍｉｅ散射的判据。In this paper,based on Mie scattering and Fraunhofer diffraction theory,we utilize the numerical calculation to compare and analyze the Mie scattering and Fraunhofer diffraction of large particles and point out that at a proper range,Fraunhofer diffraction of large particles can approximately replace Mie scattering.

关 键 词：光学 MIE散射 Fraunhofer衍射 大颗粒 

分 类 号：O436[机械工程—光学工程]