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首页> 外文期刊>Applied optics >Design and experimental verification of terahertz wideband filter based on double-layered metal hole arrays
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Design and experimental verification of terahertz wideband filter based on double-layered metal hole arrays

机译：基于双层金属孔阵列的太赫兹宽带滤波器的设计与实验验证

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A terahertz wideband filter based on double layer metal hole arrays is designed in this paper. A metal hole array is perforated on a metal layer with a square array of circular air holes. The transmission characteristics of the electromagnetic waves through the metal hole array can be determined by the accumulation of in-phase scattering, spoof surface plasmon polaritons, and waveguide modes. The transmission spectrum is tuned by adding another identical layer metal hole array, and a wideband filter can be formed accordingly. Samples containing double-layered metal hole arrays were fabricated by micromachining technology. A wideband filter with center frequency located at 0.8 THz and FWHM reaching 400 GHz was experimentally achieved.
机译：本文设计了一种基于双层金属孔阵列的太赫兹宽带滤波器。金属孔阵列在具有圆形气孔正方形阵列的金属层上穿孔。电磁波通过金属孔阵列的传输特性可以通过同相散射，欺骗性表面等离子体激元极化子和波导模式的累积来确定。通过添加另一个相同的层金属孔阵列来调整透射光谱，并且可以相应地形成宽带滤波器。通过微加工技术制备了包含双层金属孔阵列的样品。实验获得了中心频率为0.8 THz且FWHM达到400 GHz的宽带滤波器。

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