收稿日期: 2010-07-02
修回日期: 2010-10-25
网络出版日期: 2011-07-15
基金资助
国家重点基础研究发展计划(2006CB403705)、国家自然科学基金(41075015, 41005086)与LASG自由探索项目资助
Calculations of Fraunhofer diffraction by irregularly shaped particles
Received date: 2010-07-02
Revised date: 2010-10-25
Online published: 2011-07-15
赵剑琦 . 不规则形状粒子Fraunhofer衍射计算[J]. 中国科学院大学学报, 2011 , 28(4) : 462 -466 . DOI: 10.7523/j.issn.2095-6134.2011.4.006
Calculations of the Fraunhofer diffraction integrals for the translucent particles of irregular shape are discussed. Three kinds of new 1D contour integral for diffraction are derived by means of scalar Kirchhoff theory, and they are equivalent to each other and can get rid of the drawbacks of regional division in usual 2D surface integrals. Finally, analytical formula of diffraction integrals for the particles with arbitrarily polygonal projection are obtained.
Key words： diffraction; polygon; contour integration
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