Switching nonlinearity in a superconductor-enhanced metamaterial

Autor:	Kurter, Cihan, Tassin, Philippe, Zhuravel, Alexander P., Zhang, Lei, Koschny, Thomas, Ustinov, Alexey V., Soukoulis, Costas M., Anlage, Steven M.
Rok vydání:	2011
Předmět:	Condensed Matter - Materials Science Condensed Matter - Superconductivity Physics - Optics
Zdroj:	Appl. Phys. Lett. 100, 121906 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3696297
Popis:	We demonstrate a nonlinear metamaterial that can be switched between low and high transmission by controlling the power level of the incident beam. The origin of this nonlinear response is the superconducting Nb thin film employed in the metamaterial structure. We show that with moderate RF power of about 22 dBm it is possible to quench the superconducting state as a result of extremely strong current densities at the corners of the metamaterial's split-ring resonators. We measure a transmission contrast of 10 dB and a change in group delay of 70 ns between the low and high power states. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1110.5677 Zobrazit plný text záznamu View this record from Arxiv