产品描述
NIRQuest 近红外光谱仪有下面几款类型：
NIRQuest512: 900-1700 nm , 512PDA
NIRQuest512-1.9: 1100-1900 nm , 512PDA
NIRQuest256-2.1: 900-2050 nm , 256PDA
NIRQuest256-2.5: 900-2550 nm , 256PDA
SIR-2600: 900-2600 nm , 扫描光栅
SIR-3400： 1300-3400nm , 扫描光栅
For NIRQuest Spectrometers, we offer four different InGaAs linear array detectors: two 512-element arrays and two 256-element arrays. The Hamamatsu detectors used in the NIRQuest Optical Bench are InGaAs photodiode linear arrays with each pixel connected to a charged amplifier array consisting of CMOS transistors. These detectors deliver high sensitivity and stable operation in the near infrared. The detectors all include onboard thermoelectric cooling. A thermistor monitors the array's temperature and a thermoelectric device can cool the arrays to 35 °C below ambient, keeping the array stable to within ±0.1 °C. In addition, you can set and monitor the detector's temperature via software. The detector is included with the price of the NIR Spectrometer.
几款近红外光谱仪的特性：
| Type | Wavelength Range | Models | Best for |
| Array-based | 800-1600 nm | NIRQuest512-XR | Response at shortwave NIR wavelengths (<900 nm) |
| Array-based | 900-1700 nm | NIRQuest512 | Optimum response at ~1600 nm and good optical resolution (~3.0 nm FWHM) |
| Array-based | 1100-1900 nm | NIRQuest512-1.9 | Good response from 1100-1900 nm with good optical resolution (~3.1 nm FWHM) |
| Array-based | 900-2050 nm | NIRQuest256-2.1 | Good response at higher wavelengths (peak detector response ~1900 nm) and optical resolution <8.0 nm (FWHM) |
| Array-based | 900-2200 nm | NIRQuest512-2.2 | Good response across 900-2200 nm without sacrificing optical resolution performance (~4.6 nm FWHM) |
| Array-based | 900-2500 nm | NIRQuest512.2.5 | Good optical resolution ~6.3 nm FWHM) and low dark noise at longer integration times |
| Array-based | 900-2500 nm | NIRQuest256-2.5 | Good response at higher wavelengths (peak detector response ~2200 nm) and optical resolution <10.0 nm (FWHM) |
| Scanning | 900-2600 nm | SIR-2600 | Good optical resolution and SNR performance, especially for characterizing lasers |
| Scanning | 1300-3400 nm | SIR-3400 | Good optical resolution and SNR performance at longer wavelengths, especially for characterizing lasers |
| Detector Specification | NIRQuest512 | NIRQuest512-2.2 | NIRQuest256-2.1 | NIRQuest256-2.5 |
| Detector: | Hamamatsu G9204-512 InGaAs linear array | Hamamatsu G9206-512W InGaAs linear array | Hamamatsu G9206-256 InGaAs linear array | Hamamatsu G9208-256 InGaAs linear array |
| Detector range: | 850-1700 nm | 900-2200 nm | 900-2050 nm | 900-2550 nm |
| Pixels: | 512 | 512 | 256 | 256 |
| Pixel size: | 25 µm x 500 µm | 25 µm x 500 µm | 50 µm x 250 µm | 50 µm x 250 µm |
| Pixel well depth: | 188 Me- electrons | 188 Me- electrons | 188 Me- electrons | 188 Me- electrons |
| Defective pixels: | 0% | 0% | 5% | 5% |
