Quadrant Arrays HgCdTe

Typical Applications:
  • Spectroscopy
  • Radiometry
  • Research
  • IR Microscopy

The HgCdTe detectors can be fabricated in Quadrant Arrays for scanning, tracking and positioning systems. The quadrant arrays require a common lead between the four elements in either X or Y direction. This is normally wider than the minimum separation in order to handle the bias current of all four detectors. Typical specifications are given for the 2µm to 12.5µm region, however detectors are normally built as custom device arrays for the entire 1µm to 25µm range and can be fabricated with custom packages and using various cooling techniques.

InfraRed Associates, Inc. also has extensive experience in fabricating arrays from 2 to 128 elements. Multi-element arrays can be fabricated in a large variety of custom configurations including linear, staggered, offset, cross, etc. Elements as small as 25µm x 25µm with 12µm spacing can be provided with uniform radiometric characteristics. The arrays may vary in wavelength response from 1µm to 25µm and can be fabricated with custom electronics to minimize the output format.

Standard Quadrant Array Detectors are listed below. Contact us to discuss your specific requirements.


Standard HgCdTe Quadrant Array Detectors

Model Number Active Area Element(mm2) Wave-length Range (µm) FOV=60O Operating Temp. (K) X or Y Separation (µm) Common lead Width (µm) Std. Pkg. Std. Window
D* (λp,1000,1) (cmHz1/2W-1)
MCT-Q-1 1 2-12.5 > 2.0E10 77 25 50 DMSL-8

(2-14 µm)

MCT-Q-2 2 > 1.5E10 50 100
MCT-Q-3 3 > 1.0E10 50 100