CAJ | 학술논문

利用平面波展开法计算空气背景中由圆形、正六边形和正方形介质柱构造的二维三角格子光子晶体的带隙结构,并研究介质折射率、光子晶体直径与晶格常数的比值对光子带隙宽度的影响。通过理论计算表明,Si和Ge这两种材料制成的光子晶体中,只有方柱模型的光子晶体才能产生完全光子禁带。
이용평면파전개법계산공기배경중유원형、정륙변형화정방형개질주구조적이유삼각격자광자정체적대극결구,병연구개질절사솔、광자정체직경여정격상수적비치대광자대극관도적영향。통과이론계산표명,Si화Ge저량충재료제성적광자정체중,지유방주모형적광자정체재능산생완전광자금대。
With the method of plane wave expansion,the band gap of two dimensional photon crystal constructed with a triangular lattice of dielectric rods（circular,hexagon,square cross sections） in air is studied.Moreover,the effect on band gap is discussed as a function of the the refractive index and the filling fraction respectively.None but square dielectric rods model generate complete photonic band gap.