Paraxial full-field cloaking

被引：13

作者：

Choi, Joseph S. ^{[1
]}

Howell, John C. ^{[2
]}

机构：

[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

[2] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 12期

关键词：

RAY-OPTICS CLOAKING; LARGE OBJECTS; NEGATIVE INDEX; BROAD-BAND; INVISIBILITY; METAMATERIAL; DEVICES; FUTURE;

D O I：

10.1364/OE.23.015857

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We complete the 'paraxial' (small-angle) ray optics cloaking formalism presented previously [Opt. Express 22, 29465 (2014)], by extending it to the full-field of light. Omnidirectionality is then the only relaxed parameter of what may be considered an ideal, broadband, field cloak. We show that an isotropic plate of uniform thickness, with appropriately designed refractive index and dispersion, can match the phase over the whole visible spectrum. Our results support the fundamental limits on cloaking for broadband vs. omnidirectionality, and provide insights into when anisotropy may be required. (C) 2015 Optical Society of America

引用

页码：15857 / 15862

页数：6

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