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根据角域叠加原理,在石英玻璃基板上用全介质膜系实现了紫外区域全角度一维光子晶体反射镜的设计。采用两个不存在全角度反射带的一维光子晶体在角域上叠加,通过传输矩阵方法,从理论上计算合成光子存在全角度禁带,禁带波长范围328.95~352.11 nm,相对带宽为6.80%。实验上采用HfO2和SiO2两种薄膜材料,用电子束蒸发的方法在石英玻璃基板上制备合成光子晶体。若透射率在1%以下为光子晶体禁带,则禁带波长范围从331.2~350.4 nm,相对带宽5.63%。从而证明了角域叠加设计的正确性。
According to the principle of superposition of the angle domain, the design of one-dimensional photonic crystal mirrors with full-angle ultraviolet region is realized by using all dielectric films on the quartz glass substrate. One-dimensional photonic crystals with no full-angle reflection band are superimposed on the angular domain. The transfer matrix method is used to theoretically calculate the full-angle forbidden band of the synthesized photons. The forbidden band ranged from 328.95 nm to 352.11 nm with a relative bandwidth of 6.80 %. Experimental using HfO2 and SiO2 two kinds of thin film materials, electron beam evaporation method on the quartz glass substrate synthesis of photonic crystals. If the transmissivity is below 1%, photonic crystal forbidden band, the band gap range from 331.2 ~ 350.4 nm, the relative bandwidth of 5.63%. Which proves the correctness of the design of the angle domain superposition.