Yu Shuai, Zhang Tian, Han Xu, Dai Jian, Xu Kun
Opt Express. 2020 Nov 23;28(24):35561-35575. doi: 10.1364/OE.410107.
In this article, we propose a graphene metamaterial coupled with metallodielectric grating (GMCMG) structures to achieve plasmon induced reflection effects in the reflection spectrums. In order to enhance the light-matter interaction in the graphene, the micro-genetic algorithm is applied in the performance optimization for the GMCMG. Due to the absorption enhancement of graphene and the inverse design of photonic structures, a perfect absorber and an efficient third harmonic generator are obtained by employing optimized GMCMG structures. Compared with previous works, our design scheme provides a simple and efficient method for the optimization of photonic devices and has significant applications in optical modulators, absorbers and sensors.
在本文中，我们提出了一种与金属电介质光栅（GMCMG）结构耦合的石墨烯超材料，以在反射光谱中实现等离子体诱导反射效应。为了增强石墨烯中的光与物质相互作用，将微观遗传算法应用于GMCMG的性能优化。由于石墨烯的吸收增强和光子结构的逆向设计，通过采用优化的GMCMG结构获得了完美吸收体和高效的三次谐波发生器。与先前的工作相比，我们的设计方案为光子器件的优化提供了一种简单有效的方法，并且在光调制器、吸收器和传感器中具有重要应用。
