Comparison of Three Theories of Electromagnetic Diffraction at an Aperture.* Part II: The Far Field
Comparison of Three Theories of Electromagnetic Diffraction at an Aperture.* Part II: The Far Field
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孔径电磁衍射的三种理论的比较。*第二部分：远场
DOI：
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发表时间：
1966
期刊：
影响因子：
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通讯作者：
E. Wolf
中科院分区：
文献类型：
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作者：
B. Karczewski;E. Wolf
利用本研究第一部分推导的相干矩阵，在几种不同理论的基础上，系统地研究了远场结构。首先考虑了完全偏振入射场的情况，分析了能量密度和偏振态的分布。然后研究了非偏振场的衍射情况，特别注意了衍射场的偏振度。文中给出了分析和一些数值结果。比较了三种理论的预测结果，并与经典的惠更斯标量理论、菲涅耳标量理论和基尔霍夫标量理论的预测结果进行了比较。
Using the coherence matrices derived in Part I of this investigation, a systematic study is made of the structure of the far field, on the basis of several different theories. First the case of a completely polarized incident field is considered and the distribution of the energy density and the state of polarization are examined. Then the case of diffraction of an unpolarized field is studied, particular attention being paid to the degree of polarization of the diffracted field. Analytical as well as some numerical results are presented. The predictions of the three theories are compared with each other and with those of the classical scalar theory of Huygens, Fresnel, and Kirchhoff.