Thin YBCO films as fast infrared detectors: model calculations and experimental results

G. Lawrence Carr; David B. Tanner; Shahab Etemad; Arun Inam

doi:10.1117/12.176150

20 May 1994 Thin YBCO films as fast infrared detectors: model calculations and experiment results

G. Lawrence Carr, David B. Tanner, Shahab Etemad, Arun Inam

Proceedings Volume 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric; (1994) https://doi.org/10.1117/12.176150
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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 T_c. 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.

Citation Download Citation

G. Lawrence Carr, David B. Tanner, Shahab Etemad, and Arun Inam "Thin YBCO films as fast infrared detectors: model calculations and experiment results", Proc. SPIE 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric, (20 May 1994); https://doi.org/10.1117/12.176150

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