Performance of a three dimensional transformation-optical-flattened Luneburg lens

被引：44

作者：

Driscoll, Tom ^{[1
,2
]}

Lipworth, Guy ^{[1
]}

Hunt, Jack ^{[1
]}

Landy, Nathan ^{[1
]}

Kundtz, Nathan ^{[3
]}

Basov, Dimitri N. ^{[2
]}

Smith, David R. ^{[1
]}

机构：

[1] Duke Univ, Ctr Integrated Metamat & Photon, Durham, NC 27708 USA

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[3] Intellectual Ventures, Bellevue, WA 98005 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 12期

关键词：

BROAD-BAND; METAMATERIALS; CLOAK;

D O I：

10.1364/OE.20.013262

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate both the beam-forming and imaging capabilities of an X-band (8-12 GHz) operational Luneburg lens, one side of which has been flattened via a coordinate transformation optimized using quasi-conformal transformation optics (QCTO) procedures. Our experimental investigation includes benchmark performance comparisons between the QCTO Luneburg lens and a commensurate conventional Luneburg lens. The QCTO Luneburg lens is made from a metamaterial comprised of inexpensive plastic and fiberglass, and manufactured using fast and versatile numerically controlled water-jet machining. Looking forward towards the future and advanced TO designs, we discuss inevitable design trade-offs between affordable scalable manufacturing and rigorous adherence to the full TO solution, as well as possible paths to mitigate performance degradation in realizable designs. (C) 2012 Optical Society of America

引用

页码：13262 / 13273

页数：12

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