HgCdTe (MCT) Photoconductive Detectors

PC-9-AF1×1-TO39-NW-90

Ambient temperature, with anti-fringing technology

PC-9-AF1×1-TO39-NW-90 is uncooled IR photoconductive detector based on sophisticated HgCdTe heterostructure for the best performance and stability.

In order to make this detector immune to unwanted optical fringing effects, VIGO developed anti-fringing technology (internal modification of substrate’s surface) and successfully applied it. This results in the fringing 10 – 40 times smaller compared to the standard IR detector.

See specification

Features

Anti-fringing technology applied

Significant fringing reduction for 2.2 – 8.2 µm spectral range

Large active area

Excellent linearity

Applications

Gas detection, monitoring and analysis (CO, HF, NH3, C2H2, CH4, C2H6, HCl, H2CO, SO2, CO2, N2O, NOx)

Monitoring and analysis

FTIR spectroscopy and spectrometry

Laser Gas Leak Detection With Infrared

Industrial IR Sensor

Plastic Sorting Using Mid IR Linear Detector Array

Specification (Ta = 20°C)

Parameter Value
Active element material
epitaxial HgCdTe heterostructure
Cut-on wavelength λcut-on (10%) µm
2.2±0.1
Peak wavelength λpeak, µm
8.2±0.1
Cut-off wavelength λcut-off (10%) µm
10.6±0.2
Detectivity D*(λpeak 20 kHz), cm⋅Hz1/2/W
~1.4×107
Current responsivity Ripeak, 20 kHz), A/W
~0.0007
Time constant τ, ns
~2
Resistance R, Ω
~40
Bias voltage Vb, V
~0.4
1/f noise corner frequency fc, Hz
~20k
Active area A, mm×mm
AF1×1
Package
TO39
Acceptance angle, Φ
~90°
Window
none 

Spectral response (Ta = 20°C)

Exemplary spectral detectivity

PV-3TE-5-1

Mechanical layout

TO39 package

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Temperature sensor characteristics

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