HgCdTe (MCT) Detection Module
SM-I-12
2.0 – 14.0 µm, 10 Hz – 1 MHz, with optically immersed photoconductive detector
SM-I-12 is an ultra-small IR detection module. Thermoelectrically cooled, optically immersed photoconductive detector, based on HgCdTe heterostructure (PCI-3TE-12-1×1-TO8-wZnSeAR-36) is integrated with transimpedance, AC coupled preamplifier. There is a possibility to manually adjust gain of the signal. 3° wedged zinc selenide anti-reflection coated window prevents unwanted interference effects. SM-I-12 is easy to assembly in space limited measuring systems of FTIR applications.
See specification
Features
Anti-fringing technology applied
Significant fringing reduction for 2.2 – 8.2 µm spectral range
Large active area
Excellent linearity
Applications
FTIR spectroscopy and spectrometry
Specification (Ta = 20°C)
Parameter |
Typical value |
|
Optical parameters
|
||
Cut-on wavelength λcut-on (10%) µm
|
≤2.0 | |
Peak wavelength λpeak, µm
|
10.0±0.2 | |
Optimum wavelength λopt, µm
|
12.0 | |
Cut-off wavelength λcut-off (10%) µm
|
14.0±0.2 | |
Detectivity D*(λpeak, 20 kHz), cm![]() |
≥2.5×109
|
|
Detectivity D*(λopt, 20 kHz), cm
![]() |
≥1.3×109
|
|
Output noise density vn(20 kHz), μV/Hz1/2
|
≤6
|
|
Electrical parameters
|
||
Voltage responsivity Rv(λpeak, 100 kV/A), V/W |
≥1.35×105
|
|
Voltage responsivity Rv(λopt, 100 kV/A), V/W
|
≥6.30×104
|
|
Voltage responsivity Rv(λpeak, 55 kV/A), V/W
|
≥7.45×104
|
|
Voltage responsivity Rv(λopt, 55 kV/A), V/W
|
≥3.45×104
|
|
Low cut-off frequency flo, Hz
|
10 | |
High cut-off frequency fhi, Hz | 1M±0.1 | |
Output impedance Rout, Ω | 50 | |
Output voltage swing Vout, V | ±10 (RL = 1 MΩ*)) | |
Output voltage offset Voff, V
|
max ±20 | |
Other information
|
||
Active element material
|
epitaxial HgCdTe heterostructure | |
Optical area AO, mm×mm
|
1×1 | |
Window
|
wZnSeAR | |
Acceptance angle, Φ
|
~36° | |
Ambient operating temperature Ta, °C
|
10 to 30 | |
Signal output socket
|
MMCX | |
Power supply and TEC control socket
|
AMPMODU 2×4 (male) | |
Mounting hole
|
none | |
Fan
|
no
(external heatsink necessary) |
|
*) RL – load resistance |
Spectral response (Ta = 20°C)

Mechanical layout

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Application notes
Temperature sensor characteristics
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