Technology From: StellarNet

Blue Wave Miniature Spectrometers

BLUE-Wave Spectrometers are fibre optic coupled instruments with a wide selection of models for measurements in 200-1150nm wavelength ranges. Each unit contains a USB interface with a snap shot memory to provide instantaneous spectral image from the highly sensitive CCD

with 2048.

Various models provide a choice of grating range and slit resolutions. New and improved electronics with a high speed 16-bit digitiser allows for fast data acquisition and a signal to noise of 1000:1. Up to 8 units can be daisy chained together and are able to run simultaneously. Additionally the BLUE-Wave spectrometers can be powered directly from your PC USB-2 port. A single strand fibre optic cable or probe assembly delivers input via standard SMA 905 fibre optic connector with a choice of cable lengths. The spectrograph optics are exceptionally robust in a vibration tolerant modular design, with no moving parts.

The detachable spectrograph assembly and control electronics are protected inside a rugged metal enclosure, suitable for portable, process, and lab applications. Several units may be daisy-chained using a standard USB hub allowing simple configurations for dual and multi-beam applications in chemistry, spectroradiometry, and PORTA-LIBS. The small size and weight makes the BLUE-Wave spectrometers perfect for portable and OEM applications.

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Technology From: StellarNet

BLACK-Comet Concave Grating Spectrometers

The BLACK-Comet UV-VIS spectrometers utilise a 40mm diameter concave grating with aberration correction to provide superb spectral imaging. This significantly improves spectral shapes by reducing comma and astigmatism found in plane grating spectrograph designs. The spectrograph architecture does not utilise mirrors, and therefore provides the lowest possible stray light in the UV with additional assistance from the holographic line grating. The concave grating produces a flat field on the CCD

detector creating uniform resolution over the entire range. The instruments are exceptionally robust with no moving parts, and are packaged in small rugged metal enclosures (70 × 101 × 152mm) for portable spectroradiometry and lab or process spectroscopy measurements.

One of the main advantages of the BLACK-Comet is its ability to drastically reduce stray light levels, (0.02% at 435nm and 0.2% at 200nm) the lowest values of any field spectrometer. By design, the holographic grating has a smoother surface than the normal ruled gratings used in competing spectrometer models. Surface roughness is the primary source of grating generated stray light and thus by employing superior grating technology, Concave Grating Spectrometers are able to drastically reduce the effect. Additionally, grating scatter in the standard Cserny Turner design is collected and focused by the focusing mirror toward the exit port, this does not occur with the BLACK-Comet. When additional optical components like collimating and focusing mirrors are used in instrument design, it is more likely that light may be re-diffracted and scattered. Similarly, due to the spectrometers ability to reduce light scatter, especially high power UV light, the Concave Grating spectrometer provides two to three times enhanced UV sensitivity as compared to plane grating/Cserny Turner optical configurations.

Black-Comet

Miniature fibre optic spectrometers, with concave gratings deliver high performance for spectroscopy applications in the UV-Vis

wavelength ranges covering 190-850nm (model C), or optionally 280-900nm (model CXR).

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BLACK-Comet-SR: Super Range

The "Super Range" concave grating spectrometer for UV-Vis-NIR

ranges from 200-1080nm or 220-1100nm. The concave holographic grating is aberration corrected and has no mirrors to minimise 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.

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Black-Comet-HR: High Resolution

Designed for high resolution applications, the BLACK-Comet-HR spectrometer is available for measurements in two ranges - UV (200-600nm) and Visible (380-750nm), and achieves resolving resolutions of 0.4nm. This 16-bit concave grating spectrometer is USB-2 powered, shock-proof and vibration tolerant with no moving parts, includes the powerful SpectraWiz^® spectrometer software and development kit.

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Technology From: StellarNet

DWARF-Star Miniature NIR Spectrometers

Wavelength Range: 900-1700nm

The DWARF-Star, is small, robust, and equipped with high performance InGaAs detector array for the 900-1700nm wavelength range and achieves resolving resolutions to 1.25nm. The DWARF-Star features no moving parts and is packaged in a small rugged metal enclosure (127 x 76 x 51mm) for portable, process, and OEM

applications.

Advancements in electronic and optical design have allowed for size reduction never before achieved in a NIR

spectrometer. The InGaAs detector is a Sensors Unlimited linear photo diode array with 512 pixels (1024 optional) 25µm by 500µm tall to provide maximum sensitivity. The detector has an integrated thermo electric cooler (TEC) maintained at -10°C, stabilised within ±0.1°C. The NIR spectrometers accept a single strand SMA-905 terminated, low OH, fibre optic cable as input. Several models provide a variety of operational ranges and resolutions suitable for both spectroscopy and optical spectrum analysis.

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Technology From: StellarNet

RED-Wave-NIR InGaAs Portable Spectrometers

High performance InGaAs spectrometers cover the NIR

wavelength range from 0.9-2.3µm. These units are exceptionally robust with no moving parts and are packaged in small rugged metal enclosures (70 x 102 x 152mm) for portable, process, and lab applications. The InGaAs detector is a Sensors Unlimited linear photo diode array with 512 pixels (1024 optional) 25µm by 500µm tall to provide maximum sensitivity. The detector has an integrated thermo electric cooler (TEC) maintained at -10°C, stabilised within ±0.1°C. The RED-Wave-NIR-InGaAs spectrometers use single strand SMA 905 fibre optic input. Several models provide a variety of operational ranges and resolutions suitable for both spectroscopy and optical spectrum analysis.

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Technology From: StellarNet

GREEN-Wave Miniature Spectrometers

GREEN-Wave low cost Spectrometers are fibre optic coupled instruments with a wide selection of models for measurements in 350-1150nm wavelength ranges. Each unit contains a USB-2 interface with a snap shot memory to provide instantaneous spectral image from the highly sensitive CCD

for 2048 elements. Various models provide a choice of grating range and slit resolutions. A single strand fibre optic cable or probe assembly delivers input via standard SMA 905 fibre optic connector with a choice of cable lengths. The spectrograph optics are exceptionally robust in a vibration tolerant modular design, with no moving parts.

The detachable spectrograph assembly and control electronics are protected inside a rugged metal enclosure, suitable for portable, process, and lab applications. Several units may be daisy-chained using a standard USB hub allowing simple configurations for dual and multi-beam applications in chemistry, spectroradiometry, and PORTA-LIBS.

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Technology From: StellarNet

EPP2000-HR Portable Spectrometers

Wavelength Range: 200-1075nm

The EPP2000-HR High Resolution fibre optic spectrometers are available in several low cost models for UV

, Vis, and NIR applications.

The HR spectrometers have double the resolution over standard models with the same grating. The wavelength range is reduced by the same factor. Resolutions better than 0.1nm can be achieved depending on selected model range, detector, and slit size.

Applications include wavelength monitoring and characterisation for tuneable lasers/LED

s and other sources such as elemental emissions from plasma and Laser Induced Breakdown Spectroscopy. Also, optical sensing of temperature, pressure, and position are enabled via Bragg grating technology.

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Technology From: StellarNet

EPP2000-UVN-SR Portable Spectrometers

Wavelength Range: 200-1100nm

The UVN-SR fibre optic spectrometer covers the 200-1100nm wavelength range and easily performs a variety of spectroscopy measurements with the SpectraWiz software. The optics utilise a UV

enhanced CCD detector array configured with eXtreme grating technology to deliver high efficiency in both UV and NIR spectral extremes. The eXtreme optics include an integrated multi-band order sorting filter and UV enhanced detector array with optical lens to provide maximum sensitivity.

The UVN-SR can be optionally calibrated for use as a SpectroRadiometer when precision measurement of light colour and absolute intensity is needed. A 25µm slit or larger is recommended for best spectroradiometric performance coupled with a 1000µm core diameter fibre input (via standard SMA 905 connector).

The portable instrument is packaged in a small rugged metal enclosure for use with single strand fibre optic input cable. The electronics interface can be attached directly to a computers high speed USB-2. The units are vibration tolerant and are exceptionally robust with no internal adjustments or moving parts.

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Dual DSR Portable Spectrometers

Wavelength Range: 200-2300nm

Dual-DSR spectrometer systems combine two instruments to cover the ultraviolet, visible and near infrared portions of the electromagnetic spectrum. The two instruments work as one creating a unified spectral graph over the entire wavelength region, 200-2300nm. Both instruments employ a UV-Vis

detector array and NIR-InGaAs array in order to cover the entire range. 2048 element UV-VIS detector with the option of 512 or 1024 elements in the NIR.

Various models allow for ranges from 200-1700, 280-1700, or 200-2300nm depending in the measurement specifications required. These spectrometers are ruggedised for field or lab process measurements. A Miniature USB-Hub provides instrument PC interface. The Dual-DSR system has many applications for spectroradiometry, food and drug QA/QC

, and chemical process measurements due to its ability to probe the near infrared while simultaneously measuring sample UV and colour spectrum.

These units are extremely ruggedised. The detector is bolted in position and military grade epoxy holds the concave grating in place, making the instruments vibration tolerant, durable, and suitable for just about any lab and/or field measurement. 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 fibre optic cable with typical silica core diameters of 400um, 600um, 1000um.

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