A HIGHER-ORDER OPTICAL TRANSFORMATION FOR NONMAGNETIC CLOAKING

被引：5

作者：

Gallina, Ilaria ^{[1
]}

Castaldi, Giuseppe ^{[1
]}

Galdi, Vincenzo ^{[1
]}

机构：

[1] Univ Sannio, Waves Grp, Dept Engn, I-82100 Benevento, Italy

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2008年 / 50卷 / 12期

关键词：

electromagnetic cloaking; transformation optics; metamaterials; scattering;

D O I：

10.1002/mop.23905

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 coordinate-transformation-based approaches to electromagnetic concealment ("cloaking") of objects, use of higher-order (quadratic) mappings has been proposed as an effective device to obtain satisfactory responses without the use of magnetic materials that are complicated to synthesize at optical frequencies. In this article, we explore a new higher-order algebraic transformation, which allows, in principle, for a broader range of applicability and further parametric optimization. Via full-wave numerical studies of near- and far-field observables, we assess its performance by comparison with various reference cases (nonreduced parameters, quadratic transformation, no cloak). (c) 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3186-3190, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23905

引用

页码：3186 / 3190

页数：5

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