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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.
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 page
