Type II Superlattice Photoconductive Detector

Type II Superlattice Photoconductive Detector

1.6 – 12.6 µm, three-stage thermoelectrically cooled, optically immersed

PCIAS-3TE-12-1×1-TO8-wZnSeAR-36 is a Type II superlattice three-stage thermoelectrically cooled IR photoconductor, with excellent parameters. Detector element is monolithically integrated with hyperhemispherical GaAs microlens in order to improve performance of the device. Photoconductive detector should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise. 3° wedged zinc selenide anti-reflection coated window (wZnSeAR) prevents unwanted interference effects. For detection of CW radiation, using of optical chopper system is recommended. This detector does not contain mercury or cadmium and is compliant with the RoHS Directive.

Spectral response (Ta = 20°C)


  • Optical immersion lens technology applied
  • High performance in spectral range from 1.6 to 12.6 µm
  • Very high responsivity
  • Excellent linearity
  • Environmentally friendly

Specification (Ta = 20°C)

Active element material
epitaxial superlattice heterostructure
Cut-on wavelength λcut-on (10%), µm
Peak wavelength λpeak, µm
Cut-off wavelength λcut-off (10%), µm
Detectivity D*(λpeak, 20 kHz), cm⋅Hz1/2/W
Current responsivity Ripeak), A/W
Time constant τ, ns
Resistance R, Ω
Bias voltage Vb, V
typ. 0.5
1/f noise corner frequency fc, Hz
typ. 20k
Active element temperature Tdet, K
Optical area AO, mm×mm
Acceptance angle, Φ

Mechanical layout, mm

Dedicated preamplifiers

Read more
Read more
Read more
Read more

Selected Line

Infrared detection module integrates infrared photodetector, signal processing electronics, optics, heat dissipation systems and other components in common package. Products selected on the basis of high functionality and intended for many applications such as leak detection, gas analysis, temperature control for fast moving objects. Additional advantages of integration are improved high-frequency (HF) performance, output signal standardization and miniaturization. Selected Product Line guarantees a short order fulfillment date and an effective price.
Infrared Detection Modules

Configurable Line

A full range of preamplifiers dedicated to each type of VIGO System infrared detectors. The Configurable Line of modules enables the selection of the active area, type of preamplifier and bandwidth of the detection module. This makes it possible to adapt the module to the needs of your own application.
Programmable Thermoelectric cooler controller PTCC-01


We offer all the necessary accessories for our products. Electrical accessories such as thermoelectric cooler controllers and preamp power supplies. Mechanical accessories such as brackets for detectors and infrared modules, base mounting systems and cables dedicated to our products.

HgCdTe (MCT) Multi Channel Detection Modules

InAsSb Multi Channel Detection Modules

HgCdTe (MCT) Balanced / Auto-balanced IR Detection Modules

Affordable Detection Modules

If you need Evaluation Units, please contact us.

    Jeśli chcesz przetestować nasze produkty, skontaktuj się z nami.