Broadband converging plano-concave lens

被引：6

作者：

Yang, Rui ^{[1
]}

Lei, Zhenya ^{[1
]}

Chen, Lei ^{[1
]}

Zhang, Jiawei ^{[1
]}

Wang, Zhaoxu ^{[1
]}

Xie, Yongjun ^{[2
]}

机构：

[1] Xidian Univ, Sch Elect Engn, Xian 710071, Peoples R China

[2] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 13期

关键词：

NEGATIVE REFRACTION; PLANOCONCAVE LENS;

D O I：

10.1364/OL.38.002311

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A plano-concave lens with source-tailored geometric profile and transformational gradient index is proposed for broadband illumination. Such a design, capable of focusing and collimating the electromagnetic fields, fulfils the functionality of a converging lens and can also achieve a steerable beam and multiple beams efficiently. Nonresonant synthesis with a perforated dielectric plate and dielectric rod arrays is demonstrated for the lensing realization, promising a wide operating frequency band in the practical implementation. (C) 2013 Optical Society of America

引用

页码：2311 / 2313

页数：3

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