In this paper, tunable optical bistability that denotes the relationship between input intensity and output intensity is numerically investigated in the microwave frequency region based on the one-dimensional (1D) sandwich photonic structure consisting of a Kerr-type nonlinear material slab and two magnetized cold plasma layers. Results show that, in the case of TM-polarized electromagnetic wave, width and switching thresholds of the bistability loops are dependent on the working frequency, initial incidence angle, layer thickness, plasma density, and external magnetic field, which should be judiciously selected to obtain a required bistability behavior. Compared to the case of switch-down threshold, the switch-up threshold in the bistability loop is more sensitive to the changes of parameters. Through this study, the suggested 1D sandwich photonic structure is beneficial to the all-optical signal processing.

在本文中，基于由克尔型非线性材料板和两个磁化冷板组成的一维 (1D)夹心光子结构，在微波频率区域对表示输入强度和输出强度之间关系的可调谐光学双稳态进行了数值研究。等离子层。结果表明，在 TM 极化电磁波的情况下，双稳环的宽度和开关阈值取决于工作频率、初始入射角、层厚度、等离子体密度和外部磁场，应谨慎选择以获得所需的双稳态行为。双稳态回路中的开关阈值与开关阈值的情况相比，对参数的变化更为敏感。通过这项研究，建议的一维三明治光子结构有利于全光信号处理。