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

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

2010-03-30

arxiv.org/abs/1003.5934v3

Phys. Rev. Lett. 104, p. 253903 (2010)

Physics

Optics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.104.253903

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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