This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum. A rigorous coupled-wave analysis reveals that the maximum absorption attained using Ag and Al is ~ 90% at 450 and 375 nm. Experiments using Ag yielded results similar to those predicted by simulations. These results demonstrate that narrow-band perfect plasmonic absorbers, which depend on the polarization, can be realized at 450 and 375 nm using Ag or Al.

中文翻译：

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使用双层线栅结构为蓝色和近紫外光制造完美的等离子体吸收器

这项研究提出使用双层线栅结构来创建窄带，理想的等离子吸收器，该吸收器取决于极化，用于电磁波谱的短波可见光和近紫外光区域。严格的耦合波分析显示，使用Ag和Al在450和375 nm处获得的最大吸收率约为90％。使用银进行的实验得出的结果与模拟预测的结果相似。这些结果表明，使用Ag或Al可以在450和375 nm处实现取决于偏振的窄带理想等离子体吸收体。