Computer Science
Scientific paper
Jul 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4028...17a&link_type=abstract
Proc. SPIE Vol. 4028, p. 17-26, Infrared Detectors and Focal Plane Arrays VI, Eustace L. Dereniak; Robert E. Sampson; Eds.
Computer Science
Scientific paper
Amorphous semiconducting Y-Ba-Cu-O is attractive as the temperature sensitive element for uncooled IR bolometers and pyroelectric detectors. Thin films can be easily fabricated by RF magnetron sputtering at room temperature from a composite target. It is compatible with micromachining techniques for the fabrication of thermally isolated structures. As a bolometer, Y-Ba-Cu-O possesses a relatively high temperature coefficient of resistance of 3.5% K-1 near room temperature. This paper will present the IR characteristics of 40-micrometer X 40-micrometer microbolometer arrays fabricated in thermal isolation structures. These detectors are aimed at thermal imaging at 10-micrometer wavelength. Recently, self-supporting YBaCuO pixels have been developed. In this case, the Y-Ba-Cu-O thin film pixel requires no underlying bridge material to provide structural support. The Y-Ba-Cu-O thin film is supported solely by the electrode arms. Responsivity and detectivity greater than 4 X 103 V/W and 108 cmHz1/2/W respectively have been measured in these detectors. The development of large area 1.5-mm and 0.4- mm square YBaCuO bolometers for NASA's global warming studies in low-orbiting satellites will also be presented. These large area detectors require large optical bandwidths covering the 0.3-micrometer to 100-micrometer wavelength band.
Almasri Mahmoud F.
Butler Donald P.
Celik-Butler Zeynep
No associations
LandOfFree
Semiconducting YBCO bolometers for uncooled IR detection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Semiconducting YBCO bolometers for uncooled IR detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconducting YBCO bolometers for uncooled IR detection will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1482978