Fabrication and properties of rf niobium-on-sapphire superconducting resonators

Niobium-on-sapphire resonators have been constructed as sensor elements for accelerometers in gravitational wave antennae. In their present form the resonators constitute small simple sensor elements for a wide range of applications where displacements take place, such as seismometry, gravimetry, th...

Full description

Saved in:
Bibliographic Details
Published inReview of scientific instruments Vol. 50; no. 3; p. 279
Main Authors Blair, D G, Hamilton, W O
Format Journal Article
LanguageEnglish
Published United States 01.03.1979
Online AccessGet more information

Cover

Loading…
More Information
Summary:Niobium-on-sapphire resonators have been constructed as sensor elements for accelerometers in gravitational wave antennae. In their present form the resonators constitute small simple sensor elements for a wide range of applications where displacements take place, such as seismometry, gravimetry, thermal expansion measurements, as well as gravitational wave antennae. Radio-frequency losses in the niobium-sapphire interface have been observed. These limit the resonator Q to less than 10(5) and show a strong power dependence. Several methods of fabrication of the niobium-on-sapphire circuits have been investigated. Complete details for construction are given. An accelerometer based on these resonators is described in an accompanying paper.
ISSN:0034-6748
DOI:10.1063/1.1135816