A 256 × 256 Element InSb Focal Plane Array for Ground-Based Astronomy

Blessinger, Michael A.; Apgar, Gary; Biggs, Jeffrey D.; Louderback, M. L.; Niblack, Curtiss A.

doi:10.1007/978-94-011-1070-9_121

Cited by 2 publications

(1 citation statement)

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“…Their applicability in a large variety of fields including thermal imaging, remote detection, astronomy and military countermeasure systems promoted the research on so called focal plane arrays (FPA). Microbolometer, HgCdTe [1,2], InSb [3] and quantum well infrared photodetector (QWIP) FPAs have already proven their performance and are well established technologies. Despite of their performance, HgCdTe detectors are highly sensitive to their material composition and material distribution.…”

Section: Introductionmentioning

confidence: 99%

43 μm quantum cascade detector in pixel configuration

Harrer¹,

Schwarz²,

Schuler³

et al. 2016

Opt. Express

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We present the design simulation and characterization of a quantum cascade detector operating at 4.3μm wavelength. Array integration and packaging processes were investigated. The device operates in the 4.3μm CO₂ absorption region and consists of 64 pixels. The detector is designed fully compatible to standard processing and material growth methods for scalability to large pixel counts. The detector design is optimized for a high device resistance at elevated temperatures. A QCD simulation model was enhanced for resistance and responsivity optimization. The substrate illuminated pixels utilize a two dimensional Au diffraction grating to couple the light to the active region. A single pixel responsivity of 16mA/W at room temperature with a specific detectivity D^* of 5⋅10⁷ cmHz/W was measured.

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Section: Introductionmentioning

confidence: 99%