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Spectroscopy Detectors · Mid-infrared single-point detectors
DMCT Series
DMCT Liquid-Nitrogen-Cooled MCT Detectors
Liquid-nitrogen-cooled mercury-cadmium-telluride detector heads with four long-wavelength cut-off options plus a high-speed 12 µm configuration.
Catalog context
Where DMCT Series fits
DMCT Series is listed as DMCT Liquid-Nitrogen-Cooled MCT Detectors in the Mid-infrared single-point detectors family. The local catalog record provides these first selection fields: Models: DMCT12-De01 / DMCT14-De01 / DMCT16-De01 / DMCT22-De01 / DMCT12-HS; Active area: 1 × 1 mm; Spectral ranges: 2–12 / 2–14 / 2–16 / 2–22 µm, model dependent.
Specifications
| Models | DMCT12-De01 / DMCT14-De01 / DMCT16-De01 / DMCT22-De01 / DMCT12-HS |
|---|---|
| Active area | 1 × 1 mm |
| Spectral ranges | 2–12 / 2–14 / 2–16 / 2–22 µm, model dependent |
| High-speed rise time | DMCT12-HS: < 50 ns |
| Preamplifier | Optional or integrated, model dependent |
| Cooling | Liquid nitrogen |
Complete source specification
Model-by-model comparison
The full manufacturer-published comparison is transcribed below so model differences remain visible rather than being reduced to a single range.
| Parameter | DMCT12-De01 | DMCT14-De01 | DMCT16-De01 | DMCT22-De01 | DMCT12-HS |
|---|---|---|---|---|---|
| Active area | 1 × 1 mm | 1 × 1 mm | 1 × 1 mm | 1 × 1 mm | 1 × 1 mm |
| Spectral range | 2–12 µm | 2–14 µm | 2–16 µm | 2–22 µm | 2–12 µm |
| Peak responsivity | 3 × 10³ V/W | 1 × 10³ V/W | 900 V/W | 150 V/W | > 4 × 10⁴ V/W |
| Rise time | — | — | — | — | < 50 ns |
| D* at peak, 1 kHz, minimum | 3 × 10¹⁰ | 3 × 10¹⁰ | 2.5 × 10¹⁰ | 5 × 10⁹ | 3 × 10¹⁰ |
| Preamplifier | Optional | Optional | Optional | Optional | Integrated |
| Signal output | Voltage | Voltage | Voltage | Voltage | Voltage |
| Output polarity | P | P | P | P | P |
Design and integration details
- Liquid-nitrogen-cooled MCT detector family with cut-offs from 12 to 22 µm.
- Routine De01 models accept an optional preamplifier; the high-speed model integrates one.
- DMCT12-HS uses a 20 MHz preamplifier for time-resolved measurements and direct oscilloscope connection.
Application and connection notes
- Routine DMCT(x)-De heads require a preamplifier and lock-in amplifier when supplied without the -PA option.
- DMCT12/14/16/22-De01-PA variants include the original preamplifier.
- The source states that one liquid-nitrogen fill can maintain operation for approximately eight hours.
- Standard configuration is for a manual Omni-λ slit; contact us for motorized-slit integration.
Values are transcribed from the archived product table and diagrams. Confirm the final detector, electronics and spectrograph interface for your configuration.
Archived manufacturer product pageSystem integration
Integration and compatibility
Use these checks to connect DMCT Series to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Spectral response
- Spectral ranges: 2–12 / 2–14 / 2–16 / 2–22 µm, model dependent
- Responsivity varies strongly across the stated band. Read the figure at your own wavelength rather than at the peak the headline range implies.
- Active area
- Active area: 1 × 1 mm
- Active area sets both the alignment tolerance and, through capacitance, the achievable bandwidth. A larger element is easier to hit and slower to read.
- Noise and cooling
- Cooling: Liquid nitrogen
- Compare NEP or dark current at the operating temperature and bandwidth you will actually use; both figures improve with cooling and degrade with bandwidth, so a single number without conditions is not comparable.
- Output and bias
- Preamplifier: Optional or integrated, model dependent
- Confirm whether the module is biased and amplified internally or expects an external supply and transimpedance stage. The two builds are not interchangeable and the wrong assumption destroys detectors.
Technical FAQ
Integration questions for DMCT Series
What wavelengths does the DMCT Series detect?
Spectral ranges: 2–12 / 2–14 / 2–16 / 2–22 µm, model dependent. Responsivity varies strongly across the stated band. Read the figure at your own wavelength rather than at the peak the headline range implies.
What is the active area of the DMCT Series?
Active area: 1 × 1 mm. Active area sets both the alignment tolerance and, through capacitance, the achievable bandwidth. A larger element is easier to hit and slower to read.
What is the noise floor of the DMCT Series?
Cooling: Liquid nitrogen. Compare NEP or dark current at the operating temperature and bandwidth you will actually use; both figures improve with cooling and degrade with bandwidth, so a single number without conditions is not comparable.
How is the DMCT Series read out?
Preamplifier: Optional or integrated, model dependent. Confirm whether the module is biased and amplified internally or expects an external supply and transimpedance stage. The two builds are not interchangeable and the wrong assumption destroys detectors.
Model selection
Nearby series comparison
Compare DMCT Series with the closest available models in the Mid-infrared single-point detectors family.
| Selection parameter | DMCT Series (current) | DInSb5 Series | DPbS Series |
|---|---|---|---|
| Spectral response | 2–12 / 2–14 / 2–16 / 2–22 µm, model dependent | 1–5.5 µm | 0.8–2.9 µm / 0.8–3.2 µm |
| Active area | 1 × 1 mm | Ø2 mm / 1 × 1 mm | 4 × 5 mm / 6 × 6 mm |
| Cooling / output | Liquid nitrogen | Liquid nitrogen | Voltage |
