Study of positive and negative gradient refractive index alternant surface | Zendy

Xiaobo Liu | Zendy; Liu Ming-Li | Zendy; Jianzhong Chen | Zendy; Hongyu Shi | Zendy; Chen Bo | Zendy; Yansheng Jiang | Zendy; Zhuo Xu | Zendy; Zhang Anxue | Zendy

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Study of positive and negative gradient refractive index alternant surface

Author(s) -

Xiaobo Liu,

Liu Ming-Li,

Jianzhong Chen,

Hongyu Shi,

Chen Bo,

Yansheng Jiang,

Zhuo Xu,

Zhang Anxue

Publication year - 2015

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.64.084202

Subject(s) - refractive index , polarization (electrochemistry) , physics , scattering , optics , electromagnetic radiation , computational physics , computer simulation , mechanics , chemistry

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.

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