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采用角域叠加方法可以有效地获得可见光区域的一维光子晶体全角度反射器.4个TiO2/SiO2薄膜光子晶体用角域叠加形成全角度反射的相对带宽为41·33%,而在同样条件下用常规的频域叠加方法合成的全角度反射的相对带宽仅为14·26%.阐述了角域叠加的基本原理,计算给出了可见光区域的全角度反射器,并提出用角域叠加方法可方便地构建频域叠加所无法实现的紫外区域的全角度反射器.
The one-dimensional photonic crystal full-angle reflector in the visible region can be obtained effectively by using the method of overlapped by the angle domain.The relative bandwidth of the four-angle photonic crystal formed by the superposition of the angular domains is 41.33%, and under the same conditions The relative bandwidth of full-angle reflections synthesized by the conventional frequency-domain superposition method is only 14.26% .The basic principle of superposition of angular fields is expounded, the full-angle reflector in the visible region is calculated, The method makes it easy to construct a full-angle reflector in the ultraviolet region that can not be achieved by frequency domain stacking.