developed a "Super Range"
concave grating spectrometer for UV-VIS-NIR
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.
Solar Irradiance Monitoring
measuring solar irradiance. The dual blaze concave grating allows for
superb spectral imaging from 220-1100nm.
Spectral Display of a BLACK-Comet-SR
with calibrated radiometer system measuring a Tungsten Halogen lamp.
A Radiometer system consists of
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.
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 system includes a high speed plug & play interface using USB-2
Why Concave Gratings are the Best!!!
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
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.
Reflectance and Colorimetry
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.
Several units may be daisy
chained via a parallel cable or USB-2 hub allowing simple configurations
for dual and multi-beam process applications.
Free SpectraWiz Software
The powerful SpectraWiz® 32
bit spectrometer software is provided free of charge
with every spectrometer instrument. This includes
drivers and customizable software for operation on Win95
/ Win98 / WinNT /
WinME / Win2000 /WinXP.
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