Presentation + Paper
12 April 2021 QWIP as solution for mobile VLWIR imaging systems
R. Ivanov, D. Evans, S. Smuk, W. Diel, D. Rihtnesberg, L. Höglund, M. Gulde, E. Costard
Author Affiliations +
Abstract
QWIPs are renowned for unmatched image uniformity and stability. Still, in popular belief they are often associated with only stationary platforms due to low operating temperature and quantum efficiency. Challenging this myth, we demonstrate the performance of VLWIR QWIP in such demanding applications as handheld camera for gas detection and microsatellite for remote sensing. In the former, NETD of <25 mK is routinely achieved on 15 μm pitch sensor (target 30 C, 30 Hz frame rate, F/1.2, 10.5 μm peak absorption) consuming <9 W. In the latter, the 30 μm pitch array has two IR channels (10 and 10.8 μm) employing monolithically integrated bandpass filters. IDDCA delivers NETD <50 mK for 2 ms integration time (17 °C target, F/1.2) consuming 10 W. It comprises technology demonstrator for evaluating the use of microsatellites for precise temperature monitoring in Earth Observation applications. Stability of its non-uniformity correction, which is paramount for space-born applications, is also demonstrated.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Ivanov, D. Evans, S. Smuk, W. Diel, D. Rihtnesberg, L. Höglund, M. Gulde, and E. Costard "QWIP as solution for mobile VLWIR imaging systems", Proc. SPIE 11741, Infrared Technology and Applications XLVII, 117411F (12 April 2021); https://doi.org/10.1117/12.2588556
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Quantum well infrared photodetectors

Imaging systems

Absorption

Bandpass filters

Cameras

Nonuniformity corrections

Quantum efficiency

Back to Top