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Proceedings Paper

Detector characterization of a near-infrared discrete avalanche photodiode 5x5 array for astrophysical observations
Author(s): Siyang Li; Jérôme Maire; Maren Cosens; Shelley A. Wright
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Paper Abstract

We present detector characterization of a state-of-the-art near-infrared (950nm - 1650 nm) Discrete Avalanche Photodiode detector (NIRDAPD) 5×5 array. We designed an experimental setup to characterize the NIRDAPD dark count rate, photon detection efficiency (PDE), and non-linearity. The NIRDAPD array was illuminated using a 1050 nm light-emitting diode (LED) as well as 980 nm, 1310 nm, and 1550 nm laser diodes. We find a dark count rate of 3.3×106 cps, saturation at 1.2x108 photons per second, a photon detection efficiency of 14.8% at 1050 nm, and pulse detection at 1 GHz. We characterized this NIRDAPD array for a future astrophysical program that will search for technosignatures and other fast (> 1 Ghz) astrophysical transients as part of the Pulsed All-sky Near-infrared Optical Search for Extraterrestrial Intelligence (PANOSETI) project. The PANOSETI program will consist of an all-sky optical (350 - 800 nm) observatory capable of observing the entire northern hemisphere instantaneously and a wide-field NIR (950 - 1650 nm) component capable of drift scanning the entire sky in 230 clear nights. PANOSETI aims to be the first wide-field fast-time response near-infrared transient search.

Paper Details

Date Published: 7 May 2019
PDF: 8 pages
Proc. SPIE 11002, Infrared Technology and Applications XLV, 110022G (7 May 2019); doi: 10.1117/12.2519207
Show Author Affiliations
Siyang Li, Univ. of California, Berkeley (United States)
Jérôme Maire, Univ. of California, San Diego (United States)
Maren Cosens, Univ. of California, San Diego (United States)
Shelley A. Wright, Univ. of California, San Diego (United States)

Published in SPIE Proceedings Vol. 11002:
Infrared Technology and Applications XLV
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson, Editor(s)

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