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Proceedings Paper

Mid-IR photon counting array using HgCdTe APDs and the Medipix2 ROIC
Author(s): John Vallerga; Jason McPhate; Larry Dawson; Maryn Stapelbroek
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Paper Abstract

We present the design of an infrared (IR) photon counting array consisting of an array of mid IR HgCdTe APDs read out with a CMOS application specific integrated circuit (ASIC) developed for x-ray imaging called the Medipix2. The Medipix2 is an array of 256x256 pixels, each of which amplifies and counts pulse events. When combined with an APD whose gain is high enough, the Medipix2 will integrate these detected photons, and the binary readout of these counters will be fast (~ 1kHz framerate) and noiseless. Initial feasibility tests of this concept using individual APDs from DRS technologies Inc. wirebonded to Medipix input pads are discussed.

Paper Details

Date Published: 26 September 2007
PDF: 10 pages
Proc. SPIE 6660, Infrared Systems and Photoelectronic Technology II, 66600O (26 September 2007); doi: 10.1117/12.740664
Show Author Affiliations
John Vallerga, Univ. of California, Berkeley (United States)
Jason McPhate, Univ. of California, Berkeley (United States)
Larry Dawson, DRS Sensors & Targeting Systems, Inc. (United States)
Maryn Stapelbroek, DRS Sensors & Targeting Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 6660:
Infrared Systems and Photoelectronic Technology II
Eustace L. Dereniak; John P. Hartke; Randolph E. Longshore; Ashok K. Sood, Editor(s)

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