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Proceedings Paper

On Speeding-Up Pyroelectric Detectors
Author(s): P. Marquardt; G. Ntimtz; G. Galeczki
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Paper Abstract

Pyroelectric infrared detectors are serious competitors for intrinsic semiconductor detectors, their main advantages being a simpler and a cheaper fabrication process and operation at room temperature. Their handicap, however, is the slow signal response. As believed, the detectivity decreases significantly in consequence of their long dielectric relaxation time. Here we demonstrate that there are no theoretical arguments for such a frequency dependent roll-off. In addition, we propose a special doping process to speed-up the detectivity by optimizing in this way the AC resistance-matching between detector element and load.

Paper Details

Date Published: 12 September 1989
PDF: 8 pages
Proc. SPIE 1106, Future Infrared Detector Materials, (12 September 1989); doi: 10.1117/12.960636
Show Author Affiliations
P. Marquardt, Physikalisches Institut der Universitat zu Koln (Germany)
G. Ntimtz, Physikalisches Institut der Universitat zu Koln (Germany)
G. Galeczki, Physikalisches Institut der Universitat zu Koln (Germany)


Published in SPIE Proceedings Vol. 1106:
Future Infrared Detector Materials
Jan W. Baars; Randolph E. Longshore, Editor(s)

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