Delay-Bandwidth and Delay-Loss Limitations for Cloaking of Large Objects
Delay-Bandwidth and Delay-Loss Limitations for Cloaking of Large Objects
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DOI：
10.1103/physrevlett.104.253903
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发表时间：
2010-06-23
影响因子：
8.6
通讯作者：
Johnson, Steven G.
中科院分区：
文献类型：
--
作者：
Hashemi, Hila;Zhang, Baile;Johnson, Steven G.
我们使用一个简单的地平面隐形模型表明，隐形的难度基本上受到延迟损失和延迟带宽限制的限制，这些限制随着被隐形物体的尺寸相对于波长的增加而恶化。当从波长尺度的对象扩展实验隐形演示时，必须考虑这些限制。
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.