基于广义斯涅尔定律对超构表面原理的研究STUDY OF PRINCIPLE OF METASURFACE BASED ON THE GENERALIZED SNELL'S LAW
肖国梁,孙立坤,肖竹,谢佳伶,洪许海
摘要(Abstract):
作为超构材料的二维表现,超构表面是由亚波长尺度的原子结构组成的,利用单层或多层结构可以实现对入射电磁波的相位、传播方向及物理作用机制的调节。本文采用广义斯涅尔定律描述界面处引入的相位突变对电磁波折射特性的影响,并结合等离子体基模波导理论和庞加莱球模型研究了超构表面相位的传输机制。同时,本文以金-二氧化硅-金波导和平面超构透镜为例,分别介绍了传输相位和几何相位的应用,并对传输相位和几何相位在应用中遇到的困难提出一些解决办法。
关键词(KeyWords): 传输相位;几何相位;超构表面;超构透镜
基金项目(Foundation): 2021年辽宁省普通高等教育本科教学改革研究优质教学资源建设与共享项目“跨校修读学分课程建设的研究与实践——以物理学专业《光学》课程为例”
作者(Author): 肖国梁,孙立坤,肖竹,谢佳伶,洪许海
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