Journal
SENSORS
Volume 13, Issue 4, Pages 5054-5098Publisher
MDPI
DOI: 10.3390/s130405054
Keywords
infrared photodetectors; IRPDs; bulk detectors; QWIPs; QDIPs; DWELLs; superlattices
Funding
- Tufts University
- Alexander Von Humboldt Foundation of Germany
- Directorate For Engineering [1055203] Funding Source: National Science Foundation
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The first decade of the 21st-century has seen a rapid development in infrared photodetector technology. At the end of the last millennium there were two dominant IR systems, InSb- and HgCdTe-based detectors, which were well developed and available in commercial systems. While these two systems saw improvements over the last twelve years, their change has not nearly been as marked as that of the quantum-based detectors (i.e., QWIPs, QDIPs, DWELL-IPs, and SLS-based photodetectors). In this paper, we review the progress made in all of these systems over the last decade plus, compare the relative merits of the systems as they stand now, and discuss where some of the leading research groups in these fields are going to take these technologies in the years to come.
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