Delay-Bandwidth and Delay-Loss Limitations for Cloaking of Large Objects

被引：55

作者：

Hashemi, Hila ^{[1
]}

Zhang, Baile ^{[2
]}

Joannopoulos, J. D. ^{[3
]}

Johnson, Steven G. ^{[1
]}

机构：

[1] MIT, Dept Math, Cambridge, MA 02139 USA

[2] Singapore MIT Alliance Res & Technol Ctr, Singapore 117543, Singapore

[3] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 25期

关键词：

INVISIBILITY; TRANSFORMATIONS; STORAGE;

D O I：

10.1103/PhysRevLett.104.253903

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the difficulty of cloaking is fundamentally limited by delay-loss and delay-bandwidth limitations that worsen as the size of the object to be cloaked increases relative to the wavelength, using a simple model of ground-plane cloaking. These limitations must be considered when scaling experimental cloaking demonstrations up from wavelength-scale objects.

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页数：4

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