Asteroid and ALFA programs: to equip Europe with high performance IR detectors for space applications

T. Pichon; G. Badano; A. Bounab; C. Delisle; B. Fieque; O. Gravrand; B. Horeau; A. Lamoure; C. Lobre; M. Lortholary; V. Moreau; P. Mulet; T. Orduna; L. Provost; D. Sam-Giao; O. Tellier; O. Boulade

doi:10.1117/12.2630213

29 August 2022 Asteroid and ALFA programs: to equip Europe with high performance IR detectors for space applications

T. Pichon, G. Badano, A. Bounab, C. Delisle, B. Fieque, O. Gravrand, B. Horeau, A. Lamoure, C. Lobre, M. Lortholary, V. Moreau, P. Mulet, T. Orduna, L. Provost, D. Sam-Giao, O. Tellier, O. Boulade

Author Affiliations +

Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X; 121911N (2022) https://doi.org/10.1117/12.2630213
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The program Astronomy European Infrared Detector (ASTEROID), funded by the European Union through H2020 (under Grant Agreement n°730161), aims at enabling Europe to acquire the technology and knowledge necessary to manufacture 2k² high performance IR detectors. To reach these goals 9 detectors have been manufactured at Lynred and characterized at the Astrophysics Department of CEA. ASTEROID detectors are 640×512 pixels arrays with a pixel pitch of 15 μm. The detectors are p-on-n technology, with 15 μm pixel pitch, with a cut-off wavelength of 2.1 μm. In the detector architecture, the MCT light-sensitive layer is hybridized on a Source Follower Detector (SFD) Read Out Integrated Circuit (ROIC) via indium bumps. In this paper, the characterization results of ASTEROID detectors will be presented. The best detectors show extremely low dark current around 0.001 e-/s/pix, which is equivalent to standard H2RG IR detector (widely used in the IR domain for astrophysics applications). The quantum efficiency (QE) of these detectors has also been measured on a dedicated test bench and will be presented. ASTEROID detectors demonstrated a QE of 70 %.

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T. Pichon, G. Badano, A. Bounab, C. Delisle, B. Fieque, O. Gravrand, B. Horeau, A. Lamoure, C. Lobre, M. Lortholary, V. Moreau, P. Mulet, T. Orduna, L. Provost, D. Sam-Giao, O. Tellier, and O. Boulade "Asteroid and ALFA programs: to equip Europe with high performance IR detectors for space applications", Proc. SPIE 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, 121911N (29 August 2022); https://doi.org/10.1117/12.2630213

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