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Proceedings Paper

Thin YBCO films as fast infrared detectors: model calculations and experiment results
Author(s): G. Lawrence Carr; David B. Tanner; Shahab Etemad; Arun Inam
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Paper Abstract

The transient thermal photoresponse of YBCO thin epitaxial films is calculated for conditions comparable to those frequently used in actual photoresponse measurements. At low light fluences and low bias currents, the calculations are in accord with a linear bolometric response. At higher fluences and bias currents, the thermal response displays behaviors often attributed to a non-bolometric mechanism. This is particularly true for the response decay time, which can decrease as the temperature falls through Tc. Some comparisons with experiment are presented, and it is concluded that a careful analysis is required to distinguish non-bolometric from bolometric response, especially for conditions of high light fluence.

Paper Details

Date Published: 20 May 1994
PDF: 7 pages
Proc. SPIE 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric, (20 May 1994); doi: 10.1117/12.176150
Show Author Affiliations
G. Lawrence Carr, Grumman Corporate Research Ctr. (United States)
David B. Tanner, Univ. of Florida (United States)
Shahab Etemad, Bell Communications Research (United States)
Arun Inam, Bell Communications Research (United States)


Published in SPIE Proceedings Vol. 2159:
High-Temperature Superconducting Detectors: Bolometric and Nonbolometric
Michael Nahum; Jean-Claude Villegier, Editor(s)

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