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arXiv 1003.5934physics.opticsphysics.pop-ph
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大型目标隐身的延迟带宽和延迟损耗限制

Delay-bandwidth and delay-loss limitations for cloaking of large objects

Hila Hashemi, Baile Zhang, J. D. Joannopoulos, Steven G. Johnson

摘要:

基于一个简单的模型的地平面隐身,我们认为,从根本上限制了隐身的困难延迟损失和delaylbandwidth/尺寸的限制,恶化的大小的对象被掩盖的增加相对于波长。当将实验性隐身演示从波长尺度的物体向更大的尺寸扩展时,必须考虑这些因素,并建议在隐身人类尺度的物体时面临定量材料/损失挑战。

英文摘要:

Based on a simple model of ground-plane cloaking, we argue that the diffculty of cloaking is fundamentally limited by delay-loss and delaylbandwidth/size limitations that worsen as the size of the object to be cloaked increases relative to the wavelength. These considerations must be taken into account when scaling experimental cloaking demonstrations from wavelength-scale objects towards larger sizes, and suggest quantitative material/loss challenges in cloaking human-scale objects.

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