Unity absorbance layers - optimal design criteria

Autor:	Chalapat, K., Paraoanu, G. S., Du, Z., Tervo, J., Nefedov, I., Tretyakov, S.
Rok vydání:	2011
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Physics - Optics
Zdroj:	Proceedings of the Fourth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (13th-18th September 2010 Karlsruhe, Germany), Metamaterials - 2010, pp. 279-281
Druh dokumentu:	Working Paper
Popis:	We present the necessary and sufficient conditions for the unity absorbance of thin planar layers. With a simple structure comprising a double-layer grid, it is shown that zero transmission and reflection is feasible only if the second sheet is a perfectly conducting wall. The operational frequencies can be varied by tuning the grid impedance. Explicit conditions are given at the large wavelength limit; these underline the fundamental of ultra-thin perfect antennae and absorbers. Comment: 3 pages, 1 figure, conference paper
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1101.2856 Zobrazit plný text záznamu View this record from Arxiv