For measurements in the near-infrared range up to 1.7 µm, Avantes offers a series of cooled spectrometer configurations. The AvaSpec-NIR256-1.7-HSC-EVO and the AvaSpec-NIR512-1.7-HSC-EVO offer the high-sensitivity 100mm optical bench (HSC) with the next generation of electronics (EVO).

Both instruments deliver exceptional performance specifications, such as a high sample speed and integration times as fast as 20 μs, as the Avantes instruments you have come to trust. For applications where resolution is key or more data points for modeling are required, the 512-pixel detector will be the best choice.

The AvaSpec-NIR256/512-1.7-HSC-EVO spectrometers pair the same trusted InGaAs array detectors with our ultra-low-noise electronics board, featuring a USB3 and Giga-Ethernet connection port. The instruments are equipped with a Replaceable Slit. Digital and analog I/O ports enable external triggering and control over the shutter and pulsed light sources. Choose from two distinct software-controlled gain-setting modes: high-sensitivity mode (HS, default) and low-noise mode (LN).

Cooling ensures optimum noise conditions, even at longer integration times. All NIR-1.7 instruments are available with a choice of four different gratings, making it possible to choose the bandwidth fitting your application.

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Product Information

AvaSpec-NIR256-1.7-HSC-EVO AvaSpec-NIR512-1.7-HSC-EVO
Optical bench Symmetrical Czerny-Turner, 100 mm focal length, 1 stage TE cooled Symmetrical Czerny-Turner, 100 mm focal length, 1 stage TE cooled
Wavelength range 900 – 1700 nm 900 – 1700 nm
Resolution 1.9-32 nm 0.88-32 nm
Sensitivity HS in counts/µW per ms integration time 4,800.000 (integral 1000-1750 nm) 2,500,000 (integral 1000-1750 nm)
Dynamic range HS 4900:1 4900:1
Signal/noise HS 1900:1 1900:1
Integration time HS 20 µs-500 ms 20 µs-500 ms
Sensitivity LN in counts /µW per ms integration time 160,000 (integral 1000-1750 nm) 83,000 (integral 1000-1750 nm)
Dynamic range LN 7600:1 7600:1
Signal/noise LN 5000:1 5000:1
Integration time LN 20 µs-20 seconds 20 µs-20 seconds
Detector TE-cooled InGaAs linear array, 256 pixels, 50 µm x 500 µm TE-cooled InGaAs linear array, 512 pixels, 25 µm x 500 µm
AD converter 16 bit, 1.2 MHz 16 bit, 1.2 MHz
Interface USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1 Gbps USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1 Gbps
Sample speed with store to RAM 0.13 ms/scan 0.24 ms/scan
Data transfer speed 0.4 ms/scan (USB3) 0.53 ms/scan (USB3)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital IO bi-directional, trigger, synchronization, strobe, laser HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital IO bi-directional, trigger, synchronization, strobe, laser
Power supply 12 VDC, 12 W 12 VDC, 12 W
Operating temperature range 0-40°C 0-40°C
Cooling 25°C versus ambient 25°C versus ambient
Dimensions, weight 185 x 145 x 185 mm, 3.5 kg 185 x 145 x 185 mm, 3.5 kg
Use Spectral range (nm) Lines/mm Blaze (nm) Order code
NIR 900-1700 790* 150 1250 NIR150-1.2
NIR 900-1700 380-310* 300 1200 NIR300-1.2
NIR 900-1700 262-230* 400 1200 NIR400-1.2
NIR 960-1700 262-230* 400 1600 NIR400-1.6
NIR 960-1700 172-142* 600 1200 NIR600-1.2

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the smaller the range to select

Slit size (µm) 25* 50 (NIR512) 50 (NIR256) 100 200 500
FWHM in nm
150 lines/mm grating 2.9 4.0 5.0 7.0 14.0 35
300 lines/mm grating 1.5 2.0 2.5 3.5 7.0 17.5
400 lines/mm grating 1.2 1.8 2.0 2.5 5.0 12.5
600 lines/mm grating 0.66 1.0 1.14 2.0 3.5 8.8

*Only available for AvaSpec-NIR512

AvaSpec-NIR256-1.7-HSC-EVO Fiber-optic spectrometer, 100 mm AvaBench, 256 pixel InGaAs detector with 1-stage TE cooling, high-speed USB3 and ETH interface with replaceable slit, incl. AvaSoft-Basic, USB interface cable, OSF-850/1000-3. Specify grating, wavelength range and slit
AvaSpec-NIR512-1.7-HSC-EVO Fiber-optic spectrometer, 100 mm AvaBench, 512 pixel InGaAs detector with 1-stage TE cooling, high-speed USB3 and ETH interface with replaceable slit, incl. AvaSoft-Basic, USB interface cable, OSF-850/1000-3. Specify grating, wavelength range and slit
SLIT-XX-RS Replaceable slit with SMA connector, specify slit size XX=25*, 50, 100, 200 or 500 µm
SLIT-XX-RS-FCPC As SLIT-XX-RS, but with FC/PC connector

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