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利用传输矩阵法讨论了光子晶体对大气窗口(8～14μm)内发射辐射的抑制作用.根据材料的光学特性,选择了Ge与ZnS作为光子晶体的组成材料.对光子晶体的结构进行了优化,优化值为Ge与ZnS的厚度分别为0.63和1.11μm,光学厚度比为1:1,周期数为8.利用蒸发镀膜制备了光子晶体,并对制得的光子晶体的光学性质进行了测定,验证光子晶体对大气窗口发射辐射的抑制作用.
The transfer matrix method was used to study the photonic crystal’s inhibitory effect on the emission of radiation in the atmospheric window (8 ~ 14μm) .According to the optical properties of the material, Ge and ZnS were chosen as the material of photonic crystal.The structure of the photonic crystal was optimized, The optimized values of Ge and ZnS were 0.63 and 1.11μm, the optical thickness ratio was 1: 1 and the number of cycles was 8. The photonic crystals were prepared by evaporation and the optical properties of the prepared photonic crystals were measured. To verify the photonic crystal radiation on the atmospheric window of inhibition.