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构造了由AsS、SiO2、PbTe和LiF四种介质组合而成的(AB)m(CD)m-1 A(DC)m-1(BA)m一维四元镜像对称结构光子晶体模型,利用传输矩阵法,研究了该结构的光学传输特性。结果表明:当m≥4,光线垂直入射时,在可见光全波段(400~760nm)范围内恰好有一严格帯隙。四介质的几何厚度各自独立递增时,帯隙红移,宽度增加,反之亦然。随着入射角增加,帯隙将产生蓝移。对于TE波,该光子晶体具有较好的角度宽容度,可实现全角度在可见光大部分波段(400~705nm)范围内的反射;对于TM波,仅能在可见光小部分波段(400~520nm)实现全角度反射。
A (AB) m (CD) m-1 A (DC) m-1 (BA) m one-dimensional quaternionic photonic crystal model with a combination of AsS, SiO2, PbTe and LiF was fabricated. Transmission matrix method, the optical transmission characteristics of the structure. The results show that when m ≥ 4, when the light is incident perpendicularly, there is exactly a strict gap in the whole wavelength range of visible light (400 ~ 760nm). When the geometric thicknesses of the four media are independently increased, the gap will shift red and the width will increase, and vice versa. As the angle of incidence increases, the gap will produce a blue shift. For TE wave, this photonic crystal has better angular latitude and can reflect at full angle in the visible light (400 ~ 705nm). For TM wave, it can only be reflected in a small part of visible light (400 ~ 520nm) Full-angle reflection.