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12 July 2018 H4RG characterization for high-resolution infrared spectroscopy
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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.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Étienne Artigau, Jonathan Saint-Antoine, Pierre-Luc Lévesque, Philippe Vallée, René Doyon, Olivier Hernandez, and Claire Moutou "H4RG characterization for high-resolution infrared spectroscopy", Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 107091P (12 July 2018);

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