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首页> 外文期刊>Optics Letters >Terahertz demonstrations of effectively two-dimensional photonic bandgap structures
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Terahertz demonstrations of effectively two-dimensional photonic bandgap structures

机译：有效二维光子带隙结构的太赫兹演示

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摘要

We demonstrate effectively two-dimensional (2D) terahertz (THz) photonic bandgap (PBG) structures for transverse electromagnetic (TEM) mode propagation within metal parallel plate waveguides (PPWG). The 2D-PBG structures consisting of square arrays of dielectric cylinders were characterized by THz timedomain spectroscopy (THz-TDS). THz photonic bandgaps were observed, as determined by the 160 (mu)m lattice constant, the 65 (mu)m diameter, and the dielectric constant of the cylinders. The experimental measurements were fitted with excellent agreement to 2D theory, confirming that for TEM mode propagation, effectively 2D propagation experiments can be achieved within the bounded space of the PPWG.
机译：我们演示了有效的二维（2D）太赫兹（THz）光子带隙（PBG）结构，用于在金属平行板波导（PPWG）中进行横向电磁（TEM）模式传播。由THz时域光谱（THz-TDS）表征了由电介质圆柱体的正方形阵列组成的2D-PBG结构。观察到THz光子带隙，其由160μm的晶格常数，65μm的直径和圆柱的介电常数确定。实验测量与2D理论非常吻合，证实了对于TEM模式传播，可以在PPWG的有限空间内有效地进行2D传播实验。

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