Metasurfaces nanoantennas for light processing

被引：65

作者：

Farmahini-Farahani, Mohsen ^{[1
]}

Cheng, Jierong ^{[1
]}

Mosallaei, Hossein ^{[1
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2013年 / 30卷 / 09期

基金：

美国国家科学基金会;

关键词：

WAVE PLATE; REFLECTARRAY; PHASE;

D O I：

10.1364/JOSAB.30.002365

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a subwavelength unit cell constructed of nanoantennas which can independently manipulate the amplitude and phase of an incident wave. The unit cell is made of two layers of scatterers, where the first can tune the amplitude and the second the desired phase. We show that metasurfaces composed of this unit cell can be used to achieve arbitrary transmission amplitude and phase profiles. Furthermore, we show that graded metasurfaces nanoantennas along with Fourier transform blocks can be used to realize unique linear space invariant transfer functions. This approach opens opportunity for light processing on flat platforms. Novel examples are presented. (C) 2013 Optical Society of America

引用

页码：2365 / 2370

页数：6

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