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Proceedings Paper

Low dark current LWIR and VLWIR HgCdTe focal plane arrays at AIM
Author(s): S. Hanna; D. Eich; W. Fick; H. Figgemeier; M. Mahlein; W. Schirmacher; R. Thöt
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Paper Abstract

In this paper AIM presents an update on its results for both n-on-p and p-on-n low dark current planar MCT photodiode technology LWIR and VLWIR two-dimensional focal plane detector arrays with a cut-off wavelength >11μm at 80K and a 640×512 pixel format. The arrays are stitched from two 512×320 pixel photodiode arrays at a 20μm pixel pitch. Thermal dark currents significantly reduced as compared to ‘Tennant’s Rule 07’ at a yet good detection efficiency <60% as well as results from NETD and photo response performance characterization are presented over a wide operating temperature range. The improvements made allow for the same dark current performance at a 20K higher operating temperature than with previous AIM technology. The demonstrated detector performance paces the way for a new generation of higher operating temperature low SWaP LWIR MCT FPAs with a <30mK NETD up to a 110K detector operating temperature and with good operability. Alternatively, lower dark currents at common operating temperatures may be attained, enabling cutting edge next generation LWIR/VLWIR detectors for space instruments.

Paper Details

Date Published: 19 October 2016
PDF: 19 pages
Proc. SPIE 10000, Sensors, Systems, and Next-Generation Satellites XX, 100000P (19 October 2016); doi: 10.1117/12.2244514
Show Author Affiliations
S. Hanna, AIM INFRAROT-MODULE GmbH (Germany)
H. Figgemeier, AIM INFRAROT-MODULE GmbH (Germany)
M. Mahlein, AIM INFRAROT-MODULE GmbH (Germany)
W. Schirmacher, AIM INFRAROT-MODULE GmbH (Germany)

Published in SPIE Proceedings Vol. 10000:
Sensors, Systems, and Next-Generation Satellites XX
Roland Meynart; Steven P. Neeck; Toshiyoshi Kimura, Editor(s)

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