Low Wave Infrared Detector

The Hawk Long Wave Infrared (LWIR) detector is a compact and lightweight 640 x 512 Mercury Cadmium Telluride (MCT) Integrated Detector Cooler Assembly (IDCA). The Hawk LWIR detector is designed for high-performance, low-cost imaging in the 8-10 μm waveband.

Using the MCT process, the Hawk LWIR detector provides the highest environmental integrity and the superior performance of focal plane detectors.

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  • Key Benefits
  • Key Features
  • Technical Specifications
  • Technical Drawings
  • Low cost
  • Lightweight
  • Compact
  • High resolution
  • Extremely short stare time, typically 200 μs, yielding minimum motion blur
  • Simple to use
  • Long Wave (LW) 8 – 10 μm
  • Small element pitch enables miniaturization of the Dewar assembly and optics
  • High electro-optic performance with low crosstalk, automatic anti-blooming at the pixel level, and excellent sensitivity
  • Interlaced readout mode doubles storage capacity available for each pixel, enabling a significant reduction in NETD
  • Windowing gives enhanced frame rates over selected areas of the array
  • Highest LW technology performance available in the world
  • Longest LW technology DRI ranges
  • Reduced stare time, less motion blur than QWIP detectors
  • High performance in low scene temperature


  • Array: 640 x 512 pixels
  • Pixel pitch: 16 µm
  • Active Area: 10.24 x 8.19 mm


Typical Performance

  • NETD (median): 32 mK (23 mK interlaced mode)
  • Pixel operability: >99.8%


Interface Parameters

  • Modes: Snapshot or interlaced
  • Configuration control: Single serial interface
  • Output voltage range: 2.5 V
  • Charge capacity: 7 x 106 electrons
  • Number of outputs: 4
  • Pixel rate: Up to 10 MHz per output
  • Intrinsic MUX noise: 50 µV rms
  • Array operating temperature: Up to 90 K
  • Nominal operating voltage: 6 V
  • Minimum pins for operation: 16
  • Number of input clocks: 1
  • Window material: Germanium
  • Window thickness: 1.73 mm
  • Cold filter material: Silicon
  • Cold filter thickness: 0.4 mm


  • Weight: 350 g
  • Power consumption: 6 W steady state
  • Cooling engine: Rotary Stirling engine
  • Operating temperature range: -40°C to +70°C



  • Weight: 500 g
  • Power consumption: 8 W steady state
  • Cooling engine: Rotary Stirling engine
  • Operating temperature range: -40°C to +70°C


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