Mathematical Operations of Transmissive Near Fields Controlled by Metasurface with Phase and Amplitude Modulations,Annalen Der Physik

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Mathematical Operations of Transmissive Near Fields Controlled by Metasurface with Phase and Amplitude Modulations
Annalen Der Physik ( IF 2.2 ) Pub Date : 2020-04-29 , DOI: 10.1002/andp.202000069
Lei Bao _{1,

2} , Rui Yuan Wu _{1,

2} , Xiaojian Fu _{1,

2} , Tie Jun Cui _{1,

2}

Affiliation

Metasurfaces show great potential due to their powerful ability to manipulate electromagnetic waves as desired, which has been widely investigated in the microwave, terahertz, infrared, and visible regimes. Here, it is proposed to control near‐field distributions through use of a metasurface with both amplitude and phase modulations. A C‐shaped particle is designed to provide stable and continuous amplitude and phase profiles independently of transmitted waves by varying its opening and orientation angles. Benefiting from both amplitude and phase modulations on the metasurface, differentiation and integration on electric‐field distributions can be achieved by changing the arrangements of complex coefficients on the metasurface. Besides, the differential operation can be utilized to show the edges of predesigned electric‐field distributions. It is believed that the proposed method will accelerate the pace of metasurfaces towards many applications by engineering and operating the near‐field distributions.

中文翻译：

具有相位和幅度调制的超颖表面控制的透射近场的数学运算

由于超表面具有按需操纵电磁波的强大能力，因此具有巨大的潜力，这已在微波，太赫兹，红外和可见光领域得到了广泛研究。在这里，建议通过同时使用幅度和相位调制的超表面来控制近场分布。AC形粒子旨在通过改变其开度和方向角来提供稳定而连续的振幅和相位分布，而与传输波无关。得益于超颖表面上的幅度和相位调制，可以通过改变超颖表面上复数系数的排列来实现电场分布的微分和积分。此外，微分运算可以用来显示预先设计的电场分布的边缘。

更新日期：2020-04-29

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