HgCdTe (MCT) Photovoltaic Detector

2.0 – 9.8 µm, two-stage thermoelectrically cooled, optically immersed, multiple junction

PVMI-2TE-8 is two-stage thermoelectrically cooled IR photovoltaic multiple junction detector based on sophisticated HgCdTe heterostructure for the best performance and stability, optically immersed in order to improve parameters of the device. The detector is optimized for the maximum performance at λopt = 8.0 μm. It especially useful as large active area detector operating within 2.0 to 9.8 µm spectral range. 3° wedged zinc selenide anti-reflection coated (wZnSeAR) window prevents unwanted interference effects.

Spectral response (Ta = 20°C)


  • Spectral range from 2.0 to 9.8 µm
  • Two-stage thermoelectrically cooled
  • Hyperhemiimmersion microlens technology applied
  • No bias required
  • No 1/f noise
  • Sensitive to IR radiation polarisation

Specification (Ta = 20°C)

Active element material
epitaxial HgCdTe heterostructure
Optimum wavelength λopt, µm
Detectivity D*(λpeak), cm⋅Hz1/2/W
Detectivity D*(λopt), cm⋅Hz1/2/W
Current responsivity Riopt), A/W
Time constant τ, ns
Resistance R, Ω
150 to 1000
Active element temperature Tdet, K
Optical area AO, mm×mm
TO8, TO66
Acceptance angle, Φ

Mechanical layout, mm

Dedicated preamplifiers

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