摘要
论述了制造工作于微波区的二维光子晶体 ,采用高介电常数 (ε =3.72 )的石英玻璃圆柱棒镶嵌在很低介电常数 (ε =1 .0 4)的基体中达到反衬度较高 (3.72 - 1 .0 4) (3.72 +1 .0 4) >0 .5 ,满足了存在绝对光子带隙的理论要求 ,并用扫频源及网络分析仪等组成可靠的测量系统 ,测量了光子晶体的透射谱 ,同时利用平面波法计算了方形光子晶体的光子带结构 ,指出在 1 1 8GHz— 1 3 5GHz之间存在光子带隙 .这与实测结果的 1 1 75GHz— 1 3 4GHz很好符合 .
Two dimension photonic crystal behaving in the region of micro wave composed of Fused silica cylinders(ε=3.72) embedded in a styrofoma templat(ε=1.04) being a high contrast system, it is a necessary. Condition for two dimension photonic crystal having photonic hand gap ((3.72-1.04)/(3.72+1.04)>0.5) and set up a measurable system with syntheside sweeper and network analyzer etc. The transimission specturm of the photonic crystal were measured. There is a photonic band gap between 11.8 GHz and 13.5 GHz. We have a photonic band gap between 11.75 GHz and 13.4 GHz calculated by 421 plane waves, so the both agree well with each other.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2000年第1期105-106,11,共3页
Journal of Harbin Institute of Technology
关键词
传输谱
光子带隙
方形光子晶体
实验
photonic crystal
transmission spectrum
photonic band gap
