Ultrafast combined bolometric and nonbolometric infrared detector

Anne Ghis; Jean-Claude Villegier; Maurice Nail; Philippe Gibert; Serge Striby

doi:10.1117/12.176151

20 May 1994 Ultrafast combined bolometric and nonbolometric infrared detector

Anne Ghis, Jean-Claude Villegier, Maurice Nail, Philippe Gibert, Serge Striby

Proceedings Volume 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric; (1994) https://doi.org/10.1117/12.176151
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Electrical photoresponse measurements on a Corbino type structure with thin epitaxial YBaCuO layer have been previously reported. They showed a very fast inductive reaction (rise time <EQ 12 ps, width 29 ps), followed by the bolometric heating effect. New detector structures based on coplanar lines have been experimented with similar experimental apparatus. The performance of the different geometries of detector will be compared in terms of magnitude and sharpness of the inductive non-equilibrium voltage peek, and of bolometric relaxation constants. The influence of bias currents, incident power, and operating temperature on the photoresponse mechanisms will be discussed. The feasibility of applying this type of fast superconducting detectors to far infra-red radiation measurements has been demonstrated by using a Free Electron Laser pulses at a wavelength of 20 micrometers . The detector may be used as two simultaneous different sensors for describing very fast optical pulse: the fast part of the response voltage represents the envelope of the incident pulse, while the bolometric part is significant for the incident energy.

Citation Download Citation

Anne Ghis, Jean-Claude Villegier, Maurice Nail, Philippe Gibert, and Serge Striby "Ultrafast combined bolometric and nonbolometric infrared detector", Proc. SPIE 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric, (20 May 1994); https://doi.org/10.1117/12.176151

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