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Type II superlattices: HOT MWIR production and development at IRnova
Author(s): 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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Paper 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.

Paper Details

Date Published: 7 May 2019
PDF: 7 pages
Proc. SPIE 11002, Infrared Technology and Applications XLV, 110020U (7 May 2019); doi: 10.1117/12.2518818
Show Author Affiliations
L. Höglund, IRnova AB (Sweden)
S. Naureen, IRnova AB (Sweden)
R. Ivanov, IRnova AB (Sweden)
M. Pozzi, IRnova AB (Sweden)
S. Almqvist, IRnova AB (Sweden)
D. Rihtnesberg, IRnova AB (Sweden)
S. Smuk, IRnova AB (Sweden)
W. Diel, IRnova AB (Sweden)
S. Fattala, IRnova AB (Sweden)
A. Smuk, IRnova AB (Sweden)
E. Trybom, IRnova AB (Sweden)
E. Costard, IRnova AB (Sweden)


Published in SPIE Proceedings Vol. 11002:
Infrared Technology and Applications XLV
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson, Editor(s)

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