Abstract We have analyzed and discussed a flat-top Brewster filter that works in full conical mounting. Results reveal that flat-top reflection band can be formed by merging double peaks that corresponded to guided modes with different polarization states. Merging is achieved by adjusting the incident angle in the design. When the proposed single-layer waveguide grating structure is irradiated with transverse magnetic (TM) polarized plane wave at the Brewster angle, the filter has a highly efficient flat-top reflection spectral response with central wavelength of 547 nm, bandwidth of 15.5 nm (R > 90%), and sideband reflectance of

中文翻译：

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基于导模共振效应的平顶布鲁斯特滤波器

摘要 我们分析和讨论了一种全锥形安装的平顶布鲁斯特过滤器。结果表明，平顶反射带可以通过合并对应于不同偏振态的导模的双峰来形成。合并是通过在设计中调整入射角来实现的。当所提出的单层波导光栅结构以布鲁斯特角横磁（TM）偏振平面波照射时，滤波器具有高效的平顶反射光谱响应，中心波长为 547 nm，带宽为 15.5 nm（R > 90%)，边带反射率