We briefly review some non-accelerator high-frequency applications of superconductors. These include the use of high-Tc superconductors in front-end band-pass filters in cellular telephone base stations, the High Temperature Superconductor Space Experiment, and high-speed digital electronics. We also present an overview of our work on a novel form of near-field scanning microscopy at microwave frequencies. This form of microscopy can be used to investigate the microwave properties of metals and dielectrics on length scales as small as 1 mm. With this microscope we have demonstrated quantitative imaging of sheet resistance and topography at microwave frequencies. An examination of the local microwave response of the surface of a heat-treated bulk Nb sample is also presented.
@article{arxiv.cond-mat/9808195,
title = {Low Power Superconducting Microwave Applications and Microwave Microscopy},
author = {Steven M. Anlage and C. P. Vlahacos and D. E. Steinhauer and S. K. Dutta and B. J. Feenstra and A. Thanawalla and F. C. Wellstood},
journal= {arXiv preprint arXiv:cond-mat/9808195},
year = {2007}
}
Comments
11 pages, including 6 figures. Presented at the Eight Workshop on RF Superconductivity. To appear in Particle Accelerators