Near-Field Plates: Metamaterial Surfaces/Arrays for Subwavelength Focusing and Probing

被引：38
|
作者：
Grbic, Anthony [1 ]
Merlin, Roberto [2 ,3 ]
Thomas, Erin M. [1 ]
Imani, Mohammadreza F. [1 ]
机构：
[1] Univ Michigan, Dept Elect Engn & Comp Sci, Radiat Lab, Ann Arbor, MI 48109 USA
[2] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
来源：
PROCEEDINGS OF THE IEEE | 2011年 / 99卷 / 10期
基金：
美国国家科学基金会;
关键词：
Diffraction limit; evanescent wave; focusing; metamaterials; near field; ELECTROMAGNETIC-FIELDS; META-SCREEN;
D O I：
10.1109/JPROC.2011.2106191
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we present a brief overview of nearfield plates, which are nonperiodic grating-like surfaces/arrays that can focus electromagnetic field to subwavelength resolutions. The general properties of near-field plates are described, and the procedure used to design these devices is outlined. The design of two separate near-field plates is discussed in detail. One of the near-field plates produces a subwavelength line (1-D) focus while the other a spot (2-D) focus. Potential applications of near-field plates are also reviewed.
引用
收藏
页码：1806 / 1815
页数：10
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