Low Power Superconducting Microwave Applications and Microwave Microscopy

Details Low Power Superconducting Microwave Applications and Microwave Microscopy Low Power Superconducting Microwave Applications and Microwave Microscopy

1998-08-18

arxiv.org/abs/cond-mat/9808195v1

Particle Accelerators 61, [321-336]/57-72 (1998).

Physics

Condensed Matter

Superconductivity

11 pages, including 6 figures. Presented at the Eight Workshop on RF Superconductivity. To appear in Particle Accelerators

Scientific paper

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.

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