Abstract We present a theoretical study on enhancing the Faraday rotation of the monolayer phosphorus in a symmetric one-dimensional defective magneto-photonic crystal. The results show that by embedding the monolayer black phosphorus in the defect layer, the Faraday rotation angle can be significantly enhanced due to the defect mode of the magneto-photonic crystal that can strongly confine the electromagnetic field in the vicinity of the black phosphorus. The enhanced Faraday rotation angle may be increased in proportion to the external magnetic field while keeping the working wavelength and transmittance basically unchanged. The enhanced Faraday rotation can reach a gain of 20.9 dB with a transmission exceeding 60% with the applied magnetic field of 5 T after introducing the defect mode. Moreover, the Faraday rotation and the operating wavelength can be tunable using the width of the thickness of the defect layer, the incident angle, and the electron doping.

中文翻译：

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增强磁光子晶体单层磷基中的法拉第旋转

摘要 我们提出了关于增强对称一维缺陷磁光子晶体中单层磷的法拉第旋转的理论研究。结果表明，通过在缺陷层中嵌入单层黑磷，由于磁光子晶体的缺陷模式可以将电磁场强限制在黑磷附近，因此可以显着增强法拉第旋转角。增强后的法拉第转角可以在保持工作波长和透光率基本不变的情况下，与外磁场成比例地增大。在引入缺陷模式后，增强的法拉第旋转可以达到 20.9 dB 的增益，在 5 T 的外加磁场下透射率超过 60%。而且，