研究了准周期结构一维光子晶体的带隙特性和滤波特性,对ZnS与MgF2和GaAs与AlAs两种电介质组合的光子晶体在层厚不变、折射率递变和折射率不变、层厚递变以及层厚不变、折射率比递变三种情况下的透射谱作了模拟计算,得到了带隙特性的变化规律,并指出了其在滤波中的应用.与周期结构光子晶体相比,准周期结构光子晶体的透射谱发生移动,带隙宽度改变.

The band gap structure and filter properties in one dimensional photonic crystals with quasiperiods were studied. The transmission spectra were calculated in photonic crystal with quasiperiodic structure arranged alternatingly by ZnS and MgF2 or GaAs and AlAs as the thickness of layers unchanged and the index of refraction changed or the index of refraction unchanged and the thickness of layers changed or the rate of index of refraction changed. The band gap structures were obtained and the application was discussed. Comparing to the optical crystals with periodic structure, the transmission spectra in one dimensional optical crystals with quasiperiods shifted and the band gap width changed