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HgCdTe (MCT) Photoconductive DetectorPCQ-10.6
1.0 – 12.0 µm, ambient temperature, quadrant
PCQ-10.6 is uncooled IR photoconductive quadrant detector based on sophisticated HgCdTe heterostructures for the best performance and stability. Quadrant detector consists of four separate active elements arranged in a quadrant geometry. The device is optimized for the maximum performance at 10.6 µm. The detector should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise. The main application of PCQ detectors is laser beam profiling and positioning.
Features
High performance in the 1.0 – 12.0 µm spectral range
Ambient temperature operation
Long lifetime and MTBF
Stability and reliability
1/f noise
Specification (Ta = 20°C)
Parameter |
PCQ-10.6 |
|
|
Active element material
|
epitaxial HgCdTe heterostructure |
|
|
Optimum wavelength λopt, µm
|
10.6 |
|
Detectivity D*(λpeak, 20 kHz), cm ⋅Hz1/2/W |
≥1.9×107
|
|
|
Detectivity D*(λopt, 20 kHz), cm
⋅Hz1/2/W |
≥9.0×106
|
|
|
Current responsivity Ri(λopt), A/W
|
≥0.001
|
|
|
Time constant τ, ns
|
≤5 |
|
|
1/f noise corner frequency fc, Hz
|
≤20k | |
|
Bias voltage Vb, V
|
≤6.0 | |
|
Resistance R, Ω
|
≤240 |
|
|
Active area of single element A, mm×mm
|
1×1 |
|
|
Distance between elements, μm
|
50 | |
|
Package
|
TO8 | |
|
Acceptance angle, Φ
|
~70° | |
|
Window
|
none |
|
Spectral response (Ta = 20°C)
Mechanical layout, mm
TO8 package
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Application notes
Temperature sensor characteristics
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