Teledyne's high‐performance 4 K × 4 K infrared detectors

Abstract

AbstractWe present the test results of science grade 4 K × 4 K HgCdTe H4RG‐15 and H4RG‐10 SWIR 2.5 μm sensor chip assemblies (SCAs). Teledyne's 4 K × 4 K, 15 and 10 μm pixel pitch infrared arrays are developed for space and era of Extremely Large Telescopes. They are currently being used in new instrumentation on existing telescopes and missions. We report data on H4RG‐15 and H4RG‐10 arrays that have achieved science grade performance. For H4RG‐15 and H4RG‐10: very low dark current (<0.005 e−/pixel/s at 80 K and <0.01 e−/pixel/s at 95 K), high quantum efficiency >70–90%, single CDS readout noise <20 e−, operability >99%, total crosstalk <1.5%, well capacity >70 ke−, and power dissipation less than 4 mW are routinely achieved. These SCAs are substrate‐removed HgCdTe, which simultaneously detect visible and infrared light, enabling spectrographs to use a single SCA for visible‐IR sensitivity. Larger focal plane arrays can be constructed by assembling mosaics of individual arrays.