二维光子晶体带隙参数扫描特性研究

On Characters of Bandgap Parameter Scanner of Two-dimensional Photonic Crystal

把平面波展开方法(PWM)用于三角晶格二维光子晶体能带结构的数值研究,计算不同参数下三角二维光子晶体时的能带曲线,结果表明三角二维光子晶体介质中的空气柱比空气中的介质柱在柱体半径等同时更易形成完全禁带。对TE模式两种情况都较容易形成禁带,介质中的空气柱时不存在完全禁带。

PWM is used in study of numerical value of triangle lattice two - dimensional photonic crystal and computing of energy band curve in different parameters.The findings show that air column in the medium of triangle lattice two - dimensional photonic crystal is easier to form complete forbidden band when the semi - diameters of the column are equal. It is easy to form forbidden band under two conditions of TE while the air column of the medium has not complete forbid- den band.