长方格子光子晶体带隙特性

Rectangular lattice photonic crystal band gap characteristics

基于平面波展开法,以长方格子光子晶体带隙特性为研究对象,改变长方格子空气圆柱半轴a和b的大小,得到当a=b时形成较宽的光子带隙,随着b的增大,光子带隙逐渐减小。改变构成长方格子光子晶体基底的材料,得到Ge构成基底时形成较宽的光子带隙。研究结果为光子晶体器件的制作提供参考。

Abstract： Based on the plane wave expansion method, with the rectangular lattice photonic crystal band gap properties as the research object, change the long - square cylindrical air axle a and the size of the B, obtained when a= b forms a wide photonic band gap, with the increase of B, photonic band gap decreased. Change the form of rectangular lattice photonic crystal substrate material, Ge constituting the substrate is formed when a wide photonic band gap. The results for the photonic crystal devices to provide reference.