基于金属棒阵列微结构的太赫兹等离子体波导

Borwen You, Wen-jie Cheng, Ja-Yu Lu, T. Liu, T. Hattori
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引用次数: 0

摘要

金属棒阵列(MRA)作为矩形通道波导的微结构包层,用于引导太赫兹(THz)波。微结构包层是改变波导损耗、色散、共振和通带的关键。以太赫兹场谐振和相应的模态场为例,说明了MRA周期可以根据工程波导进行定制。MRA被认为是一种等离子体金属材料,具有欺骗等离子体频率并依赖于MRA的几何形状。波导通道内的太赫兹场共振对于模拟天然金属中不存在的太赫兹区域的“等离子体共振”具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Terahertz plasmonic waveguides based on a microstructure of metal rod array
Metal rod array (MRA) are presented as the microstructured cladding of a rectangle channel waveguide to guide terahertz (THz) waves. The microstructure cladding is critical to modify the waveguide loss, dispersion, resonance, and pass-band. THz-field resonance and the corresponding modal field are taken as examples to express that the MRA period can be tailored for engineering the waveguide. MRA is agreed as a plasmonic metalmaterial, possessing spoof plasma frequency and dependent on the MRA geometry. The case of THz-field resonance inside the waveguide channel is significant to mimic “plasmonic resonance” in THz region that does not appear in natural metals.
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