论文标题
WKB的结构性波导方法
WKB approach for structured waveguides
论文作者
论文摘要
提出了近似方法的发展结果，可以将其视为WKB方法的类似物。这种方法可以使结构化波导中的电磁场分为前向和向后的组件，并简化对场特征的分析，尤其是相分布的分析。通过将方程组的近似系统与一般方程组的解相结合的解决方案来估计该方法的准确性。为此，编写了一个特殊的代码，将提议的方法与更准确的方法相结合。该比较的结果表明，类似于SLAC截面的组速度梯度的拟议近似方法的准确性约为1％。
The results of the development of an approximate approach, which can be considered as an analogue of the WKB method, are presented. This approach gives possibility to divide the electromagnetic field in structured waveguides into forward and backward components and simplify the analysis of the field characteristics, especially the phase distribution. The accuracy of this method was estimated by comparing the solution of the approximate system of equations with the solution of the general system of equations. For this, a special code was written that combines the proposed approach with the more accurate one developed earlier. The results of this comparison showed that the accuracy of the proposed approximate approach for sections with group velocity gradients, similar to the SLAC section, is about 1%.
