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

Autor:	Hashemi, Hila, Zhang, Baile, Joannopoulos, J. D., Johnson, Steven G.
Rok vydání:	2010
Předmět:	Physics - Optics Physics - Popular Physics
Zdroj:	Phys. Rev. Lett. 104, p. 253903 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.104.253903
Popis:	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. Comment: 4 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1003.5934 Zobrazit plný text záznamu View this record from Arxiv