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
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.
引用
收藏
页数:4
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