Spectroscopy Detectors · Near-infrared linear arrays
DField-NIR Series
DField Series InGaAs Linear Array Detectors
A 512-pixel InGaAs linear-array detector family for spectroscopic measurements from the near infrared into the extended NIR, with three wavelength-range configurations.
Specifications
| Models | DField-NIR-D1 / DField-NIR-D3 / DField-NIR-D7 |
|---|---|
| Spectral ranges | 0.85–1.45 µm / 0.9–1.7 µm / 0.9–2.2 µm |
| Pixel size | D1: 25 × 500 µm; D3/D7: 25 × 250 µm |
| Image area | D1: 12.8 × 0.5 mm; D3/D7: 12.8 × 0.25 mm |
| Active pixels | 512 |
| A/D resolution | 16 bit |
| Integration time | D1/D3: 1 ms–120 s; D7: 1 ms–1 s |
| Cooling temperature at 25 °C ambient | D1/D7: −20 °C; D3: −10 °C |
| Trigger | Software and external trigger |
| I/O | Trigger input and shutter-control output |
| Communication | USB 2.0 |
| Supply | 12 V DC |
| Dimensions | 99 × 119 × 78 mm |
| Weight | 1 kg |
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 | DField-NIR-D1 | DField-NIR-D3 | DField-NIR-D7 |
|---|---|---|---|
| Spectral range | 0.85–1.45 µm | 0.9–1.7 µm | 0.9–2.2 µm |
| Pixel size | 25 × 500 µm | 25 × 250 µm | 25 × 250 µm |
| Image area | 12.8 × 0.5 mm | 12.8 × 0.25 mm | 12.8 × 0.25 mm |
| Dynamic range, low gain | 14,000 | 14,000 | 14,000 |
| Dynamic range, high gain | 7,000 | 7,000 | 7,000 |
| Active pixels | 512 | 512 | 512 |
| A/D resolution | 16 bit | 16 bit | 16 bit |
| Integration time | 1 ms–120 s | 1 ms–120 s | 1 ms–1 s |
| Cooling temperature at 25 °C ambient | −20 °C | −10 °C | −20 °C |
| Trigger mode | Software / external | Software / external | Software / external |
| Input / output | Trigger input / shutter output | Trigger input / shutter output | Trigger input / shutter output |
| Communication | USB 2.0 | USB 2.0 | USB 2.0 |
| Supply | 12 V DC | 12 V DC | 12 V DC |
| Dimensions | 99 × 119 × 78 mm | 99 × 119 × 78 mm | 99 × 119 × 78 mm |
| Weight | 1 kg | 1 kg | 1 kg |
Design and integration details
- Three InGaAs array configurations cover 0.85–2.2 µm.
- 512 active pixels with 16-bit conversion.
- Software and external triggering plus a shutter-control output.
- Large dynamic range with selectable low- and high-gain modes.
Application and connection notes
- Choose the wavelength cut-off first: D1 to 1.45 µm, D3 to 1.7 µm or D7 to 2.2 µm.
- The source gallery includes spectral-responsivity and mechanical-dimension drawings.
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
