Equivalent Circuit of a Superconducting Bolometer
- 1 June 1969
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 40 (7) , 2822-2827
- https://doi.org/10.1063/1.1658082
Abstract
The theory of superconducting bolometer operation is presented and a small‐signal equivalent circuit developed. This circuit contains a portion that represents dynamic thermal effects and a portion resulting from superconductive phenomena. It is shown that the incremental impedance is greater than the dc resistance even for the limit of zero‐frequency modulation. A peaking phenomenon is predicted in the incremental impedance versus temperature for this circuit. The characteristic parameters of a tin superconducting bolometer are presented to indicate the usefulness of incremental impedance measurements in determining these parameters.This publication has 7 references indexed in Scilit:
- Radiant-Energy Detection by Superconducting FilmsJournal of Applied Physics, 1968
- Noise in Metal BolometersJournal of Applied Physics, 1967
- Thermal microwave phononsProceedings of the IEEE, 1966
- Spectroscopy at extreme infra-red wavelenghts. I. TechniqueProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1961
- The General Theory of Bolometer PerformanceJournal of the Optical Society of America, 1953
- An Investigation of the Properties of Evaporated Metal Bolometers*Journal of the Optical Society of America, 1947
- A Fast Superconducting Bolometer*Journal of the Optical Society of America, 1946