Experimental demonstration of negative refraction imaging in both amplitude and phase

被引：22

作者：

Lu, ZL ^{[1
]}

Shi, SY ^{[1
]}

Schuetz, CA ^{[1
]}

Prather, DW ^{[1
]}

机构：

[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 06期

关键词：

D O I：

10.1364/OPEX.13.002007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We studied a two-dimensional square-lattice photonic crystal with all-angle negative refraction at its first band. Using this photonic crystal, we designed and fabricated a flat lens functioning as a cylindrical lens by increasing the vertical dimension of the photonic crystal. Two-dimensional finite-difference time-domain simulation validated negative refraction imaging. To perform the experiment, a microwave imaging system was built based on a vector network analyzer. Field distributions were acquired by scanning the imaging plane and object plane. The experiment demonstrated negative refraction imaging in both amplitude and phase, and obtained an image with feature size, 0.77 lambda(0). (C) 2005 Optical Society of America.

引用

页码：2007 / 2012

页数：6

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