Glow reduction of ultra-low noise LmAPDs: towards photon counting infrared arrays

Guillaume Huber; Michael Bottom; Charles-Antoine Claveau; Shane Jacobson; Matthew Newland; Ian Baker; Keith Barnes; Matthew Hicks

doi:10.1117/12.3020530

27 August 2024 Glow reduction of ultra-low noise LmAPDs: towards photon counting infrared arrays

Guillaume Huber, Michael Bottom, Charles-Antoine Claveau, Shane Jacobson, Matthew Newland, Ian Baker, Keith Barnes, Matthew Hicks

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 1310320 (2024) https://doi.org/10.1117/12.3020530
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Spectroscopy and direct-imaging of ultra-faint targets such as Earth-like exoplanets and high redshift galaxies are among the primary goals of upcoming large scale astronomy projects like the Habitable World Observatory (HWO). Such objectives pose extreme instrumental challenges, in particular on detectors where dark currents lower than 1 e-/pixel/kilosecond and read noise less than 1 e-/pixel/frame will have to be achieved on large format arrays. Some technologies meet these requirements at optical wavelengths, but none do in the infrared. With this goal in mind, the University of Hawaii has partnered with Leonardo to develop linear-mode avalanche photodiodes (LmAPDs). In this paper, we report recent tests performed on LmAPDs, where we measure a ROIC glow of ∼0.01 e-/pixel/frame, without which the intrinsic dark current is essentially zero (<0.1 e-/pixel/kilosecond). We show that at high gain, these devices are capable of detecting single photons.

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

Citation Download Citation

Guillaume Huber, Michael Bottom, Charles-Antoine Claveau, Shane Jacobson, Matthew Newland, Ian Baker, Keith Barnes, and Matthew Hicks "Glow reduction of ultra-low noise LmAPDs: towards photon counting infrared arrays", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 1310320 (27 August 2024); https://doi.org/10.1117/12.3020530

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