In this letter, the scattering of a nondiffractive Bessel beam (BB) incident field by a perfect electric conducting circular cylinder is investigated and compared with the standard scattering solution by a plane wave. It is proven that the BB incident field improves the validity of standard physical optics approximation and possibly extends its range of applicability to cylinders, or more general scatterers, whose curvature radius is not much larger than the operating wavelength. This offers new effective possibilities in the solutions of different electromagnetic scattering problems.

中文翻译：

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通过贝塞尔光束散射改进物理光学近似

在这封信中，研究了完美导电圆柱对非衍射贝塞尔光束 (BB) 入射场的散射，并与平面波的标准散射解决方案进行了比较。事实证明，BB 入射场提高了标准物理光学近似的有效性，并可能将其适用范围扩展到圆柱体，或更一般的散射体，其曲率半径不大于工作波长。这为解决不同的电磁散射问题提供了新的有效可能性。