Melamed Timor
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel.
J Opt Soc Am A Opt Image Sci Vis. 2011 Mar 1;28(3):401-9. doi: 10.1364/JOSAA.28.000401.
The present contribution is concerned with applying beam-type expansion to planar aperture time-harmonic electromagnetic field distribution in which the propagating elements, the electromagnetic beam-type wave objects, are decomposed into transverse electric (TE) and transverse magnetic (TM) field constituents. This procedure is essential for applying Maxwell's boundary conditions for solving different scattering problems. The propagating field is described as a discrete superposition of tilted and shifted TE and TM electromagnetic beams over the frame-based spatial-directional expansion lattice. These vector wave objects are evaluated either by applying differential operators to scalar beam propagators, or by using plane-wave spectral representations. Explicit asymptotic expressions for scalar, as well as for electromagnetic, Gaussian beam propagators are presented as well.
本文致力于将波束型展开应用于平面孔径时谐电磁场分布，其中传播元件，即电磁波束型波动对象，被分解为横向电场（TE）和横向磁场（TM）场分量。此过程对于应用麦克斯韦边界条件求解不同散射问题至关重要。传播场被描述为基于框架的空间方向展开晶格上倾斜和移位的TE和TM电磁波束的离散叠加。这些矢量波动对象可通过对标量波束传播器应用微分算子或使用平面波谱表示来评估。还给出了标量以及电磁高斯波束传播器的显式渐近表达式。
