NIR-256 temperature-tunable near-infrared (NIR) spectrometer (NIR256-2.5)
The NIR256-2.1 and NIR256-2.5 temperature-adjustable NIR spectrometers are suitable for applications requiring high sensitivity in the near-infrared region, such as wavelength measurement of tunable lasers and general NIR spectroscopy research. The NIR256-2.1 spectrometer is equipped with a temperature-adjustable 256-pixel InGaAs linear array detector, with a detection range of 0.9-2.1 μm wavelength or 1.2-2.1 μm, depending on the choice of grating. The NIR256-2.5 extends further into the NIR, achieving spectra up to 2.5 μm. NIR256-2.1 spectrometer: spectra can reach 2.1 μm. The NIR256 uses a 256-element InGaAs linear array detector. The NIR256 has two grating options: N1 grating, wavelength range 1200-2100 nm; N2 grating, wavelength range 900-2100 nm. The NR256-2.1 can rapidly acquire data within 10 milliseconds. NIR256-2.5 spectrometer: spectra can reach 2.5 μm. The NIR256-2.5 extended spectrometer can achieve spectra up to 2.5 um. The NIR256-2.5 uses a temperature-controlled InGaAs linear array detector, which can be internally cooled to achieve high signal-to-noise ratio and sensitivity. The NR256-2.5 can rapidly acquire data within 10 ms. Cooling design: Each photodetector has an associated temperature cooler. A thermistor monitors the detector temperature, and a thermoelectric device can lower the detector array temperature to 30 ℃ below ambient, keeping the detector array temperature stable within +/-0.1 ℃. The detector temperature setting can be controlled via software. Integrated design: A 16-bit A/D converter is integrated into the spectrometer and requires a 5V DC transformer (included) for power. When the NIR256 is connected to a PC via a USB interface, the spectrometer's EEPROM can be accessed, which stores the spectrometer's wavelength calibration coefficients and other information. It can also be connected to the spectrometer via an RS-232 serial port.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensions | 153.4 mm × 105.2 mm × 76.2 mm |
| Weight | 980 grams |
| Detector | Hamamatsu G9208-256; InGaAs linear array CCD |
| Detection Range | 900-2550 nm |
| Pixels [Maximum 5% defective pixels.] | 256 pixels |
| Pixel size | 25 μm × 250 μm |
| Pixel well depth | 188 Me- electrons |
| Design | f/4, crossed symmetrical Czerny-Turner |
| Focal length [input] | 40 mm input |
| Aperture [Wide slit or fiber (no slit)] | 5 μm, 10 μm, 25 μm, 50 μm, 100 μm or 200 µm wide slit or fiber (no slit) |
| Grating options | 1 type (N2 grating) |
| HC-1 grating option | None |
| Detector condenser lens | None |
| OFLV filter option | None |
| Other optical bench options | None |
| Calibration and focusing mirror | Standard |
| UV enhanced | None |
| Fiber connection | SMA 905 interface, 0.22 aperture single-core fiber |
| Wavelength range [N2 grating] | 900-2500 nm (N2 grating) |
| Optical resolution (FWHM) | ~7.5-25.0 nm FWHM |
| Signal-to-noise ratio [at full signal] | 4000:1 (at full signal) |
| A/D conversion precision | 16 bit |
| Dark noise | 12 RMS counts |
| Dynamic range | 5 x 10^6 (system); 5000:1 (single shot) |
| Integration time | 1 ms - 30 s |
| Linearity after calibration | >99.8 % |
| Power supply [5 VDC] | 2 A @ 5 VDC |
| Data transfer speed | Full scan to memory via USB port in 10 ms |
| Input/Output | None |
| Analog channel | None |
| Auto zero | None |
| Output breakout box | None |
| Excitation mode | 3 types |
| Pulse output | Yes |
| Threshold delay feature | None |
| Connector | 15-pin connector |
| Operating System | Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port |
| Computer interface [12 Mbps；RS-232 (2-wire) @ 115.2 K baud] | USB 2.0 @ 12 Mbps; RS-232 (2-wire) @ 115.2 K baud |
| Peripheral interface | I2C inter-integrated circuit; SPI (3-wire) |
Applications
Datasheet
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Supplier Information
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