Experimental realization of a broadband bend structure using gradient index metamaterials

被引：49

作者：

Mei, Zhong Lei ^{[1
,2
]}

Cui, Tie Jun ^{[1
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China

[2] Lanzhou Univ, Sch Informat Sci & Engn, Lanzhou 730000, Peoples R China

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 20期

关键词：

OPTICAL-WAVE-GUIDES; DESIGN; CLOAKING;

D O I：

10.1364/OE.17.018354

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Following the theoretical work on arbitrary waveguide bends using gradient-index and isotropic materials, a 90-degree bend structure is experimentally realized using artificial metamaterials. Broadband and low-loss unit cells, the I-shaped cells, are used in the laboratory prototype. Field mapping measurement validates the design. The method can be directly and easily extended to the design of directional cloaks, microwave lens, beam shifters, and beam-steering devices. (C) 2009 Optical Society of America

引用

页码：18354 / 18363

页数：10

共 39 条

[1] Single-negative, double-negative, and low-index metamaterials and their electromagnetic applications [J].

Alu, A. ;

Engheta, N. ;

Erentok, A. ;

Ziolkowski, R. W. .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2007, 49 (01) :23-36

[2] Epsilon-near-zero metamaterials and electromagnetic sources:: Tailoring the radiation phase pattern [J].

Alu, Andrea ;

Silveirinha, Mario G. ;

Salandrino, Alessandro ;

Engheta, Nader .

PHYSICAL REVIEW B, 2007, 75 (15)

[3] Capacitor-loaded split ring resonators as tunable metamaterial components [J].

Aydin, K. ;

Ozbay, E. .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (02)

[4] Designs for optical cloaking with high-order transformations [J].

Cai, Wenshan ;

Chettiar, Uday K. ;

Kildishev, Alexander V. ;

Shalaev, Vladimir M. .

OPTICS EXPRESS, 2008, 16 (08) :5444-5452

[5] Optical cloaking with metamaterials [J].

Cai, Wenshan ;

Chettiar, Uday K. ;

Kildishev, Alexander V. ;

Shalaev, Vladimir M. .

NATURE PHOTONICS, 2007, 1 (04) :224-227

[6] Controllable left-handed metamaterial and its application to a steerable antenna [J].

Chen, Hongsheng ;

Wu, Bae-Ian ;

Ran, Lixin ;

Grzegorczyk, Tomasz M. ;

Kong, Jin Au .

APPLIED PHYSICS LETTERS, 2006, 89 (05)

[7] Free-space microwave focusing by a negative-index gradient lens [J].

Driscoll, T ;

Basov, DN ;

Starr, AF ;

Rye, PM ;

Nemat-Nasser, S ;

Schurig, D ;

Smith, DR .

APPLIED PHYSICS LETTERS, 2006, 88 (08)

[8]

Gabor D., 1999, Principles of optics

[9] Silicon nanostructure cloak operating at optical frequencies [J].

Gabrielli, Lucas H. ;

Cardenas, Jaime ;

Poitras, Carl B. ;

Lipson, Michal .

NATURE PHOTONICS, 2009, 3 (08) :461-463

[10] LOW-LOSS OPTICAL WAVE-GUIDE-BEND CONFIGURATION WITH CURVED CORNER REFLECTOR [J].

HATAMIHANZA, H ;

CHU, PL ;

NAYYER, J .

ELECTRONICS LETTERS, 1992, 28 (25) :2283-2285

← 1 2 3 4 →