- Measurements in the 200-1080nm or 220-1100nm range
- Concave grating optics for high performance applications
- Super Range concave grating with dual blaze for best sensitivity
- Enhanced spectral imaging with no mirrors for lowest possible stray light
- Flat field imaging for uniform resolution
- No optical adjustments for extreme thermal stability
- TEC upgrade now available for 2016! Increases S/N by 60%
- Concave gratings white paper
Super Range 200-1100nm
StellarNet has developed a “Super Range” concave grating spectrometer for UV-VIS-NIR range from 200-1080nm or 220-1100nm. The concave holographic grating is aberration corrected and has no mirrors to minimize stray light with superb imaging projecting a flat field on the detector. Additionally, the grating has a dual blaze to provide high efficiency in both the UV and NIR wavelengths. The optics can be fitted with choice of detectors with 2k/3k element CCD or PDAs. StellarNets’ miniature fiber optic spectrometers with concave gratings deliver high performance. The instruments are exceptionally robust with no moving parts, and are packaged in small rugged metal enclosures (2.75 x4 x6 inch) for portable spectroradiometry and lab or process spectroscopy measurements. The Dual Blazed Concave Grating significantly improves spectral shapes by reducing comma and astigmatism found in plane grating spectrograph designs. The flat field spectrograph architecture does not utilize mirrors, and therefore provides the lowest possible stray light in the UV with additional assistance from the holographic line gratings.
A multi-band filter is integrated into the spectrograph to provide order sorting and prevent optical aliasing. The instruments optical input is attached via standard SMA-905 connector, using single strand fiber optic cable with typical silica core diameters of 400um, 600um, 1000um. The spectrometers interface to notebook and desktop computers via high speed USB-2 and parallel ports. The SpectraWiz software accurately measures wavelength emissions, reflectance, transmission, absorption, concentrations and absolute concentrations.
|BLACK-CometModel||Wavelength Range (nm)||Grating g / mm||Slit-200 nm res.||Slit-100 nm res.||Slit-50 nm res.||Slit-25 nm res.||Slit-14 nm res.|
|Specifications: BLACK-Comet SR Spectrometers from $3,495|
|Dynamic Range:||2000:1 with 6 decades||Dimensions:||69 x 100 x 150 mm|
|Optical Resolution:||see above||Power Consumption:||100 mA @ 5 VDC|
|Detector Type:||2048 pixel CCD, PDA opt.||Interface:||USB-2|
|Detector Range:||200-1080 nm or 220-1100 nm||Data Transfer Speed:||3x / 40x faster than USB-1|
|Pixel Size:||14 um x 200 um||Detector Integration:||1 ms to 65 s|
|Concave Grating:||Aberration corrected||Slit Size Options:||14, 25, 50, 100, 200 um|
|Grating Type:||Holographic, 590 g/mm||Stray Light:||0.02% at 435 nm; 0.2% at 200 nm|
|Spectrograph:||f/2, Flat field – No mirrors||Fiber Optic Input:||SMA905 0.22 na single fiber|
|Order Sorting Filter:||Integrated multi-band||Operating Systems:||Win XP, Vista, 7, 8, & 10|
|Signal to Noise:||1000:1 CCD, TEC Options||Software Included:||SpectraWiz program & apps|
|Digitizer:||16-bit||Also Free Programs For:||LabView / VC / VBA / Delphi|
*BLACK-Comet TE Cooler upgrades reduce the temperature of the CCD to 15 degrees below ambient and increase instrument S/N by 60% at long exposures, improving low light measurement quality for fluorescence and other weak emission applications. In order to achieve low temperatures the TEC add-on includes a new sealed and isolated detector enclosure with specialized heat sink and air flow design for added stability and cool operation. TEC Upgrade Price – $1,650
BLACK-Comet TE Cooler upgrades reduce the temperature of the CCD to 15 degrees below ambient and increase instrument S/N drastically by reducing noise over 50% at long exposures. This upgrade improves the compact spectrometer’s measurement quality and makes it a perfect solution for fluorescence and other weak emission applications. In order to achieve low temperatures the TEC add-on includes a new sealed and isolated detector enclosure with specialized heat sink and air flow design for added stability and cool operation.
TEC Upgrade Price -> $1,650
Low light spectral measurement of a dim backlit LED display. The display measurement is performed with a BLACK-Comet-TEC spectrometer with the thermo-electric cooler ON and OFF at a 30 second exposure time. The background noise is drastically reduced, increasing instrument detection capabilities.
BLACK-Comet-SR Sample Spectra
BLACK-Comet-SR measuring the transmission and reflectance of some thin film coatings. StellarNet complete systems also include a light source, transmission fixture/sample holder, and fiber optic cables.
Spectral Display of a BLACK-Comet-SR with calibrated radiometer system measuring a Tungsten Halogen lamp. A Radiometer system consists of configured spectrometer, fiber optic cable, and light collecting accessory such as a cosine receptor or integrating sphere. The complete system must be spectroradiometrically calibrated by StellarNet to NIST standards before proper absolute intensity results are obtained.
Reflectance and Colorimetry
BLACK-Comet-SR measuring the reflectance of red ground habanero peppers from 220-100nm. StellarNet colorimetry systems include a configured spectrometer, light source, reflectance fixture or probe and other sampling accessories.
Spectral sensitivity is one of the most important factors in choosing the proper miniature spectrometer. The concave grating optical design allows for high sensitivity in the UV and far NIR as seen above looking at deuterium, tungsten halogen, and Mercury Argon simultaneously.
The powerful SpectraWiz® spectrometer software is provided free of charge with every spectrometer instrument. This includes drivers and customizable software for Windows. The SpectraWiz software is considered the “Swiss Army Knife of Spectroscopy” and may be used to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities. In addition to real-time spectroscopy, SpectraWiz® has built-in applications for SpectroRadiometry, SpectroColorimetry, ChemWiz chemistry lab concentration analyzer, and UV level monitors.
JACK 1-In Trigger
TTL input trigger to enable spectrometer scan $100
Units may be daisy chained via USB-2 hub allowing simple configurations for dual and multi-beam process applications. 8 BLUE-Wave spectrometers can be operated at once!
- SpectroChemistry Systems
- Optical Metrology
- Fluorescence Spectroscopy