A MODAL-ANALYSIS OF LAMELLAR DIFFRACTION GRATINGS IN CONICAL MOUNTINGS
A MODAL-ANALYSIS OF LAMELLAR DIFFRACTION GRATINGS IN CONICAL MOUNTINGS
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DOI：
10.1080/09500349314550631
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发表时间：
1993-04-01
影响因子：
1.3
通讯作者：
LI, L
中科院分区：
文献类型：
--
作者：
LI, L
严格的模态分析。介绍了锥形安装中的层状光栅，即具有矩形凹槽的光栅。它是 Botten 等人分析的延伸。其中考虑了非圆锥形安装。扩展中的 kev 步长是将光栅区域中的电磁场分解为两个正交分量。实现这种扩展模态分析的计算机程序能够处理具有深槽的介电和金属光栅以任意入射角和任意入射偏振产生的平面波衍射。包括一些数值示例。
A rigorous modal analysis. of lamellar gratings, i.e. gratings having rectangular grooves, in conical mountings is presented. It is an extension of the analysis of Botten et al. which considered non-conical mountings. A kev step in the extension is a decomposition of the electromagnetic field in the grating region into two orthogonal components. A computer program implementing this extended modal analysis is capable of dealing with plane wave diffraction by dielectric and metallic gratings with deep grooves, at arbitrary angles of incidence, and having arbitrary incident polarizations. Some numerical examples are included.