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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 38, Iss. 10 — Oct. 1, 1948
  • pp: 845–853

The Infra-Red Sensitivity of Superconducting Bolometers

NELSON FUSON  »View Author Affiliations


JOSA, Vol. 38, Issue 10, pp. 845-853 (1948)
http://dx.doi.org/10.1364/JOSA.38.000845


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Abstract

Columbium nitride superconducting bolometers have been studied for sensitivity when irradiated with a wide band of modulated infra-red radiation of about 0.1 microwatt/mm2 intensity. The bolometer response was amplified by means of a matching input transformer and wide-band amplifier. Time constants for different bolometers ranging from 0.7 to 17.0 milliseconds were observed. Comparisons are given between these superconducting bolometers and other infra-red detectors described in the literature on the basis of reference conditions suggested by Jones (reference 1). Of the 25 superconducting bolometers studied in detail the 9 most sensitive had figures of merit ranging from 14.0 to 1.3.

Citation
NELSON FUSON, "The Infra-Red Sensitivity of Superconducting Bolometers," J. Opt. Soc. Am. 38, 845-853 (1948)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-38-10-845

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