Type-II superlattice HD detectors at IRnova for eSWIR and MWIR applications

L. Höglund; M. Delmas; R. Ivanov; D. Ramos; L. Bendrot; T. Kohl; L. Žurauskaitė; D. Evans; D. Rihtnesberg; S. Smuk; A. Smuk; S. Becanovic; S. Almqvist; P. Tinghag; E. Costard

doi:10.1117/12.3015871

7 June 2024 Type-II superlattice HD detectors at IRnova for eSWIR and MWIR applications

L. Höglund, M. Delmas, R. Ivanov, D. Ramos, L. Bendrot, T. Kohl, L. Žurauskaitė, D. Evans, D. Rihtnesberg, S. Smuk, A. Smuk, S. Becanovic, S. Almqvist, P. Tinghag, E. Costard

Author Affiliations +

Proceedings Volume 13046, Infrared Technology and Applications L; 130460J (2024) https://doi.org/10.1117/12.3015871
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

In this paper, the first extended SWIR (eSWIR, 1-2.5 μm) focal plane array (FPA) results, based on IRnova’s 2.5 μm cutoff T2SL design are presented. High sensitivity is demonstrated with a signal to noise ratio (SNR) of 215 @ 50% well fill and a dynamic range of 1750 for a full well size of 118 ke- of the CTIA ROIC. Good uniformity across the detectors is evidenced by narrow SNR histograms, uniform response maps and low signal non-uniformity (~1 %). This work is part of the development route towards large footprint (2048 × 512 pixels, 15 μm pitch) HD space prototype eSWIR FPAs, currently performed within the EU-project STEP (Silicon and T2SL EuroPean collaboration for a non-dependent supply chain for large eSWIR FPAs). In addition, a first preview of the HD FPA performance enabled by IRnova’s midwave infrared (MWIR) T2SL small pitch technology is presented, showing an NETD of 32 mK at 120 K with F/3, 60 Hz and 10 ms integration time.

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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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L. Höglund, M. Delmas, R. Ivanov, D. Ramos, L. Bendrot, T. Kohl, L. Žurauskaitė, D. Evans, D. Rihtnesberg, S. Smuk, A. Smuk, S. Becanovic, S. Almqvist, P. Tinghag, and E. Costard "Type-II superlattice HD detectors at IRnova for eSWIR and MWIR applications", Proc. SPIE 13046, Infrared Technology and Applications L, 130460J (7 June 2024); https://doi.org/10.1117/12.3015871

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