Basdemir Husnu Deniz
J Opt Soc Am A Opt Image Sci Vis. 2020 Jun 1;37(6):930-939. doi: 10.1364/JOSAA.389239.
In the present work, diffraction of a Gaussian source beam by a perfect electromagnetic conductor (PEMC) semi-screen is investigated. Due to the special property of the PEMC sheet, which is a combination of perfect electric conductor and perfect magnetic conductor surfaces, the reflected wave from the PEMC surface has a cross-polarized component in addition to the co-polarized component. For an electric line source illumination, the diffracted fields are derived by considering the analogy between the transition boundaries and scattered geometric optics fields. Later, the complex point source technique is applied for evaluation of Gaussian beam diffraction. The finite magnitude values of fields are derived with the aid of an improved version of the well-known uniform theory of diffraction for evanescent plane waves. Also, the resultant waves are plotted and discussed for different groups of parameters.
在本工作中，研究了高斯源光束被理想电磁导体（PEMC）半屏的衍射。由于PEMC片材的特殊性质，它是理想电导体和理想磁导体表面的组合，PEMC表面的反射波除了共极化分量外还有一个交叉极化分量。对于电线路源照明，通过考虑过渡边界与散射几何光学场之间的类比来推导衍射场。随后，应用复点源技术来评估高斯光束衍射。借助用于倏逝平面波的著名均匀衍射理论的改进版本，得出了场的有限幅值。此外，针对不同参数组绘制并讨论了合成波。
