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设计了带有缺陷的结构为(HL)m L(HL)n的二元一维光子晶体,利用光学传输矩阵法对光子晶体的滤波性能开展了仿真研究,研究表明:缺陷层厚度和入射角变化会导致窄带透过窗口的位置产生移动。在固定入射波波长为1500nm的基础上,设定结构每层介质为350nm、缺陷层厚度为260nm、入射角为45°时,可以制作带宽小于0.0008nm的高透射率超窄带滤波器,对发展超高精度光学信息测量仪具有重要意义。
The binary one-dimensional photonic crystal with (HL) m L (HL) n is designed. The optical transmission matrix method is used to simulate the filtering performance of the photonic crystal. The results show that the thickness and angle of incidence Variations cause the narrow band to move through the window. On the basis of the fixed incident wavelength of 1500nm, the structure of each layer of the medium is set to 350nm, the defect layer thickness of 260nm, the incident angle of 45 °, you can create a bandwidth of less than 0.0008nm high transmissivity ultra-narrowband filter, the development Ultra-high precision optical information measuring instrument is of great significance.