Abstract. The study of magnetophotonic crystals is usually based on its reflection and transmission of light waves, but its absorption properties are rarely studied. Considering the current high absorptivity of one-way absorbers has one absorption peak, and the optical constants of magnetophotonic crystals are all ideal approximation, we introduce the practical optical constants of silicon carbide (SiC) into the magnetophotonic crystals model. The optical properties are investigated in visible wavelength based on the transformation matrix method, and some parameter effects are also discussed in detail, such as the incidence angle and the thickness of defect layer. The one-dimensional (1-D) magnetophotonic crystal structure was systematically optimized. Then a multipeak one-way light absorber composed of real semiconductor and metal based on 1-D magnetophotonic crystal is further proposed, which makes the channel position of perfect nonreciprocal absorption controllable and the number increased; the influence of incident conditions on the absorption efficiency is greatly weakened and the universality and flexibility of one-way absorber in practice are greatly enhanced. The achievement provides new ideas for the study of nonreciprocal absorbers.

中文翻译：

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基于一维磁光子晶体的多峰单向吸光器设计

摘要。磁光子晶体的研究通常基于其对光波的反射和透射，但很少研究其吸收特性。考虑到目前单向吸收体的高吸收率只有一个吸收峰，而且磁光子晶体的光学常数都是理想的近似值，我们将碳化硅（SiC）的实用光学常数引入到磁光子晶体模型中。基于变换矩阵法研究了可见光波长下的光学特性，并详细讨论了一些参数影响，如入射角和缺陷层厚度。系统地优化了一维（1-D）磁光子晶体结构。然后进一步提出了一种基于一维磁光子晶体的由真实半导体和金属组成的多峰单向光吸收体，使得完全非互易吸收的通道位置可控，数量增加；大大减弱了入射条件对吸收效率的影响，大大增强了单向吸收器在实践中的通用性和灵活性。该成果为非互易吸收体的研究提供了新思路。