Superconductor terahertz metamaterial
Optics
2010-03-29 v1
Abstract
We characterize the behaviour of split ring resonators made up of high-transition temperature YBCO superconductor using terahertz time domain spectroscopy. The superconductor metamaterial shows sharp change in the transmission spectrum at the fundamental inductive-capacitive resonance and the dipole resonance as the temperature dips below the transition temperature. Our results reveal that the high performance of such a metamaterial is limited by material imperfections and defects such as cracks, voids and secondary phases which play dominant role in partially impeding the flow of current causing dissipation of energy and electrical resistance to appear in the superconductor film.
Cite
@article{arxiv.1003.5169,
title = {Superconductor terahertz metamaterial},
author = {Jianqiang Gu and Ranjan Singh and Zhen Tian and Wei Cao and Qirong Xing and Jiaguang Han and Weili Zhang},
journal= {arXiv preprint arXiv:1003.5169},
year = {2010}
}
Comments
6 pages, 3 figures