Type II superlattices: HOT MWIR production and development at IRnova

L. Höglund; S. Naureen; R. Ivanov; M. Pozzi; S. Almqvist; D. Rihtnesberg; S. Smuk; W. Diel; S. Fattala; A. Smuk; E. Trybom; E. Costard

doi:10.1117/12.2518818

7 May 2019 Type II superlattices: HOT MWIR production and development at IRnova

L. Höglund, S. Naureen, R. Ivanov, M. Pozzi, S. Almqvist, D. Rihtnesberg, S. Smuk, W. Diel, S. Fattala, A. Smuk, E. Trybom, E. Costard

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Proceedings Volume 11002, Infrared Technology and Applications XLV; 110020U (2019) https://doi.org/10.1117/12.2518818
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

In this paper, the performance of high operating temperature (HOT) type-II superlattice FPAs (640 × 512 pixels @ 15 μm pitch), are demonstrated. The type-II superlattice design used for these FPAs has a cut-off wavelength of 5.3 μm and the quantum efficiency is extracted to 80% at FPA level. The HOT FPAs are integrated in IDDCAs with small size, weight and power (SWaP) with F#4 configuration. Excellent imaging performance is demonstrated at 110 K with temporal NETD of 21 mK, spatial NETD of 7 mK, 10 ms integration time and typical operability > 99.8 %. From modelling and studies of the temperature dependence of the FPA performance, further increase of the operating temperature up 130 K is predicted for the 5.3μm design.

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L. Höglund, S. Naureen, R. Ivanov, M. Pozzi, S. Almqvist, D. Rihtnesberg, S. Smuk, W. Diel, S. Fattala, A. Smuk, E. Trybom, and E. Costard "Type II superlattices: HOT MWIR production and development at IRnova", Proc. SPIE 11002, Infrared Technology and Applications XLV, 110020U (7 May 2019); https://doi.org/10.1117/12.2518818

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