In most of the experiments reported to date, the perforated metal films were fabricated by the focused-ion-beam method, and their transmission enhancement was in the visible and near-infrared regions.

• 根据目前的实验研究报道，这种周期结构金属薄膜通常利用聚焦离子束刻蚀工艺来获得，器件的光学响应在可见光波段和近红外波段。