HgCdTe Focal Plane Arrays For Low Background Astronomical Applications

Mark Hereld; D. A. Harper

doi:10.1117/12.968122

13 October 1986 HgCdTe Focal Plane Arrays For Low Background Astronomical Applications

Mark Hereld, D. A. Harper

Proceedings Volume 0627, Instrumentation in Astronomy VI; (1986) https://doi.org/10.1117/12.968122
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

Mercury cadmium telluride is a promising detector material for low background astronomical imaging and spectroscopy in the near infrared. We have begun a program to measure dark current as a function of temperature in both isolated HgCdTe diode arrays and arrays which have been bump-bonded to silicon multiplexers. In this paper, we describe measurements of 2.5 μm cutoff diode material and a hybrid array with a CCD readout. Measurements of 52 μm x 52 μm detectors indicate that id may be less than 50-100 e-/sec at 87 K.

Citation Download Citation

Mark Hereld and D. A. Harper "HgCdTe Focal Plane Arrays For Low Background Astronomical Applications", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968122

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