Single Superconducting Split-Ring Resonator Electrodynamics
摘要
We investigate the microwave electrodynamic properties of a single superconducting thin film split-ring resonator (SRR). The experiments were performed in an all-Nb waveguide, with Nb wires and Nb SRRs. Transmission data showed a high-Q stopband for a single Nb SRR ( at 4.2 K) below , and no such feature for a Cu SRR, or closed Nb loops, of similar dimensions. Adding SRRs increased the bandwidth, but decreased the insertion loss of the features. Placing the Nb SRR into an array of wires produced a single, elementary negative-index passband ( at 4.2 K). Changes in the features due to the superconducting kinetic inductance were observed. Models for the SRR permeability, and the wire dielectric response, were used to fit the data.
引用
@article{arxiv.cond-mat/0512515,
title = {Single Superconducting Split-Ring Resonator Electrodynamics},
author = {Michael C. Ricci and Steven M. Anlage},
journal= {arXiv preprint arXiv:cond-mat/0512515},
year = {2007}
}
备注
4 pages, 3 figures, RevTex, submitted to Applied Physics Letters. Updated version includes mention of bianisotropy, better looking figures, and different temperature data