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HgCdTe (MCT) Photovoltaic DetectorPVI-4

2.4 – 4.4 µm, ambient temperature, optically immersed

PVI-4 is uncooled IR photovoltaic 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 = 4.0 μm. Cut‑on wavelength can be optimized upon request. Reverse bias Vb may significantly increase response speed and dynamic range. It also results in improved performance at high frequencies, but 1/f noise that appears in biased devices may reduce performance at low frequencies.

Features

High performance in the 2.4 - 4.4 µm spectral range

Ambient temperature operation

Hyperhemiimmersion microlens technology applied

No bias required

No 1/f noise

Specification (Ta = 20°C, Vb = 0 mV)

Parameter
PVI-4
Active element material
epitaxial HgCdTe heterostructure
Optimum wavelength λopt, µm
4.0
Detectivity D*(λpeak), cm⋅Hz1/2/W
≥3.0×1010
Detectivity D*(λopt), cm⋅Hz1/2/W
≥2.0×1010
Current responsivity Riopt), A/W
≥1.0
Time constant τ, ns
≤150
Resistance-optical area product R⋅AO, Ω⋅cm2
≥6
Optical area AO, mm×mm
0.5×0.5, 1×1
Package
TO39, BNC
Acceptance angle, Φ
~36°
Window
none

Spectral response (Ta = 20°C, Vb = 0 mV)

PVI-4-1

Mechanical layout, mm

BNC-imm-2-2

BNC package

TO39-imm-3-2

TO39 package

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Temperature sensor characteristics

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