Compact and Low Cost Spectrometers

ARIS Compact Spectrometers for
UV-VIS-NIR

Configuration	Wavelength range	Resolution (FWHM) typ. max.
Aris Wide	185 − 1000 nm	1.00	1.20 nm
Aris UV/VIS	185 − 550 nm	0.40	0.60 nm
Aris UV	185 − 420 nm	0.33	0.40 nm
Aris VIS	350 − 840 nm	0.60	0.70 nm
Aris VIS/NIR	510 − 1020 nm	0.80	1.00 nm
Aris Wide NIR	300 − 1100 nm	1.10	1.40 nm

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The Aris spectrometer is the next step into the future of embedded spectroscopy. A laboratory-grade instrument that also meets the size, price and reliability requirements for portable and industrial applications. With its high-throughput optical design, the Aris delivers 2 to 4 times better sensitivity than other spectrometers in this price range. An optimized stray light suppression enables the measurement of larger absorbance values.
The Aris offers an unsurpassed flexibility to adapt the spectrometer to the requirements of a specific application. It is available in six standard wavelength ranges that can be customized using a large choice of available diffraction gratings. The default entrance slit of 20 μm is user-replaceable and can be easily exchanged to obtain better sensitivity. Standard configurations include one of two image sensors (see below) with more choices available on request. The powerful microcontroller performs on-board auto exposure, averaging, buffering and spectrum processing. In addition, it enables the
implementation of application-specific spectrum evaluation. With its proven reliability in rough conditions and compact size, the Aris bridges the gap between laboratory and field spectrometers.

Avenir Optics

•Symmetrical high-throughput Czerny-Turner
•Focal length 50 mm
•Numerical aperture 0.16 (equivalent area)
•Stray light < 0.08 % *
•Detector lens Included
•Order sorting filter Included (if required)
•Optical interface SMA connector (other interfaces on request

Custom Options

•User-replaceable entrance slits
• Custom wavelength ranges
• Different image sensors
• Additional optical filters
• Application-specific processing and evaluation

Image Sensors

	Toshiba	Hamamatsu
	TCD1304DG	S11639-01
Number of pixels	3648	2048
Exposure time range	3 µs − 35 min	54 µs − 35 min
Signal-to-Noise Ratio *	350	600
Dynamic Range **	1900 : 1	4500 : 1
Readout speed	1 MHz	2 MHz
UV sensitivity	good	excellent

SIENA Near Infrared Spectrometer

Configuration	Wavelength range	Resolution (FWHM) typ. max.
Siena 1.7	940 – 1700 nm	8 nm	10 nm
Siena 1.9	800 – 1900 nm	12 nm	14 nm
Siena 2.1	900 – 2100 nm	13 nm	16 nm

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The Siena takes near-infrared spectroscopy to a new level. It combines the performance and flexibility of an array-based spectrometer with the size, price and reliability required for mobile applications and industrial sensors. For the first time it offers wavelength ranges up to 2100 nm with an uncooled InGaAs array sensor.

NIR spectrometers are usually either high-performance/high cost or low performance/low cost. The Siena delivers the technical performance for precise measurements at a price suitable for integration in portable and industrial sensors. Large absorbance values can be accurately measured due to its superior sensitivity, optimized stray light suppression and high dynamic range.

The Siena includes the flexibility to adapt it to a specific application: It is available in three standard wavelength ranges that can be customized to increase resolution. The default entrance slit of 20 μm is user-replaceable and can be easily exchanged to obtain better sensitivity. Its powerful microcontroller performs on-board auto exposure, averaging, buffering and spectrum processing. In addition, it enables the implementation of application-specific spectrum evaluation.

Delivering exceptional performance at an unprecedented price, the Siena opens up countless new possibilities for NIR-based sensors.