Panyaev Ivan S, Sannikov Dmitry G, Dadoenkova Nataliya N, Dadoenkova Yuliya S
Appl Opt. 2021 Mar 1;60(7):1943-1952. doi: 10.1364/AO.415966.
We investigate theoretically and numerically one-dimensional three-periodic photonic crystals of the structure [(/)(/)], formed by dielectric oxides , , , and ( and are the number of subperiods, and is the number of superperiods). We study the transmission spectra, energy and power fluxes of TE- and TM-polarized electromagnetic waves for a photonic crystal, characterized by the sharp PBG edges, and narrow and pronounced peaks of defect modes. The angular distance (difference in the incidence angles) between the transmission peaks of different polarizations is shown to be about 1.5°, which is 5 times more than in the ternary photonic crystals. The results can be useful for designing highly efficient optical devices operating in the infrared regime on the side-surface of the photonic crystal, such as polarization-sensitive couplers and angle sensors for optical fiber systems.
我们从理论和数值上研究了由介电氧化物、、、和（和分别是子周期数，是超周期数）构成的结构为[(/)(/)]的一维三周期光子晶体。我们研究了具有尖锐光子带隙（PBG）边缘以及缺陷模窄而明显峰值的光子晶体中TE和TM偏振电磁波的透射光谱、能量和功率通量。不同偏振的透射峰之间的角距离（入射角之差）约为1.5°，这比三元光子晶体中的大5倍。这些结果对于设计在光子晶体侧面工作于红外波段的高效光学器件很有用，例如用于光纤系统的偏振敏感耦合器和角度传感器。
