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Proceedings Paper

H4RG characterization for high-resolution infrared spectroscopy
Author(s): Étienne Artigau; Jonathan Saint-Antoine; Pierre-Luc Lévesque; Philippe Vallée; René Doyon; Olivier Hernandez; Claire Moutou
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Paper Abstract

Large-format infrared arrays are enablers for a variety of astronomical applications, from wide-field imaging to very high-resolution spectroscopy over a wide range of wavelength. We present the optimization of the science-grade H4RG array used in the SPIRou high-resolution spectrograph designed for high-precision velocity measurements. In SPIRou nominal science operation, the array is used in a relatively low flux regime, well below the full-well of the arrays and, for some applications, the readout noise is a major contributor to the overall signal-to-noise budget. We describe the detector fine-tuning process as well as the derived properties and their impact on performances. We identify persistence as potentially problematic under certain circumstances for infrared m/s velocimetry.

Paper Details

Date Published: 12 July 2018
PDF: 13 pages
Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 107091P (12 July 2018); doi: 10.1117/12.2314475
Show Author Affiliations
Étienne Artigau, Univ. de Montréal (Canada)
Jonathan Saint-Antoine, Univ. de Montréal (Canada)
Pierre-Luc Lévesque, Univ. de Montréal (Canada)
Philippe Vallée, Univ. de Montréal (Canada)
René Doyon, Univ. de Montréal (Canada)
Olivier Hernandez, Univ. de Montréal (Canada)
Planétarium Rio Tinto Alcan (Canada)
Claire Moutou, Canada-France-Hawaii Telescope Corp. (United States)

Published in SPIE Proceedings Vol. 10709:
High Energy, Optical, and Infrared Detectors for Astronomy VIII
Andrew D. Holland; James Beletic, Editor(s)

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