Basdemir Husnu Deniz
J Opt Soc Am A Opt Image Sci Vis. 2024 Apr 1;41(4):700-707. doi: 10.1364/JOSAA.516314.
This study examined the diffraction of a pseudo nondiffracting Bessel beam by a perfect electromagnetic disk. The geometric optics beam waves were written from the geometry of the problem and related boundary conditions. The diffracted beam waves were derived by utilizing the relation between geometric optics and diffracted waves at the transition boundaries, considering the high frequency asymptotic expression of the scattered wave. The uniform scattered beam waves were expressed in terms of Fresnel functions with the uniform geometrical theory of the diffraction method. Thus, finite magnitudes were read at the transition boundaries. Finally, the obtained uniform expressions were investigated numerically for different groups of parameters.
本研究考察了理想电磁圆盘对伪非衍射贝塞尔光束的衍射。根据问题的几何结构和相关边界条件写出几何光学光束波。利用几何光学与过渡边界处衍射波之间的关系，考虑散射波的高频渐近表达式，推导衍射光束波。采用衍射方法的统一几何理论，用菲涅耳函数表示均匀散射光束波。因此，在过渡边界处可读取有限量值。最后，对不同参数组的所得统一表达式进行了数值研究。
