Terahertz demonstrations of effectively two-dimensional photonic bandgap structures

被引：44
|
作者：
Zhao, Yuguang [1 ]
Grischkowsky, D. [1 ]
机构：
[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA
来源：
OPTICS LETTERS | 2006年 / 31卷 / 10期
关键词：
D O I：
10.1364/OL.31.001534
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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 time-domain spectroscopy (THz-TDS). THz photonic bandgaps were observed, as determined by the 160 Am lattice constant, the 65 Am 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. (c) 2006 Optical Society of America.
引用
收藏
页码：1534 / 1536
页数：3
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