物理学报Issue(8)：1-5,5.DOI:10.7498/aps.64.084202
折射率正负梯度交替表面的研究∗
Study of p ositive and negative gradient refractive index alternant surface
摘要
Abstract
In this paper, we design a kind of positive and negative gradient refractive index alternating surface and discuss its physical mechanism by the geometrical optics method and the numerical simulation of electromagnetic field. This structure can control the propagation of electromagnetic waves by adjusting some parameters such as refractive gradient. Under certain parameters, electromagnetic waves from space can be confined mainly in the media all the time, or are released into the space after propagating a certain distance in the media. This structure is polarization-independent and wide-band. It means that this structure can be used as a stealth surface by reducing the scattering cross section. Finally, the characteristics of the structure are verified by the numerical simulation.关键词
折射率正负梯度交替表面/几何光学法/隐身表面Key words
positive and negative gradient refractive index alternant surface/geometrical optics method/stealth surface引用本文复制引用
刘晓波,刘明黎,陈建忠,施宏宇,陈博,蒋延生,徐卓,张安学..折射率正负梯度交替表面的研究∗[J].物理学报,2015,(8):1-5,5.基金项目
国家自然科学基金重点项目(批准号:61331005)和国家自然科学基金(批准号:61471292,61001039)资助的课题.* Project supported by the Key Program of the National Natural Science Foundation of China (Grant No.61331005) and the National Natural Science Foundation of China (Grant Nos.61471292,61001039) （批准号:61331005）
