The AvaSpec-ULS2048x64TEC-EVO is an updated version of our AvaSpec-ULS2048x64TEC spectrometer with improved electronics and cooling.

This instrument enhances the SensLine series with its cooled, back-thinned detector. The back-thinned detector has a high level of sensitivity in the UV and IR regions. The 64-pixel height (0.89 mm) enables catching as many photons as possible, while the cooling allows for long integration times of up to 120 seconds with low noise levels.

The instrument features a Peltier cooling device integrated into our exclusive ultra-low stray-light optical bench, which can reduce the temperature of the CCD chip to -30°C against ambient, significantly improving the dark baseline and PRNU level. The detector cooling also reduces the dark noise by a factor of 2-3.

The AvaSpec-ULS2048x64TEC-EVO uses a special low-noise version of the 2048×64 detector with integrated cooling.

All the features mentioned above make this instrument ideally suited for measuring low-light applications, such as fluorescence or low-light Raman measurements.

Optimum flexibility is guaranteed with the replaceable slit, making the instrument suitable for various applications.

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Product Information

Optical bench ULS symmetrical Czerny-Turner, 75 mm focal length
Wavelength range 200-1160 nm
Resolution 0.09-20 nm, depending on configuration, see resolution tab
Stray light <1%, depending on grating
Sensitivity in counts/µW per ms integration time 300,000
Detector CCD linear array, 2048×64 pixels, low noise
Temperature cooled CCD Max. ΔT = -30°C versus ambient. Optimal setting: 5°C
1 stage Peltier cooling internal power supply@ΔT=-35° 5 VDC, 3.0 A
Signal/noise 550:1
AD converter 16 bit, 500 KHz
Integration time 9.7 ms-10 minutes
Interface USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1Gbps
Sample speed with on-board averaging 9.7 ms/scan
Data transfer speed 9.7 ms/scan (USB3 and ETH)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync, strobe, laser
Power supply 12 VDC, 1.5 A
Dimensions, weight 185 x 145 x 184 mm, 3.5 kg
Use Useable range (nm) Spectral range (nm) Lines/mm Blaze (nm) Order code
UV/VIS/NIR 200-1160** 960** 300 300 UA
UV/VIS/NIR 200-1100** 900** 300 300/1000 UNA-DB
UV/VIS 200-850 520 600 300 UB
UV 200-750 250-220* 1200 250 UC
UV 200-650 165-145* 1800 250 UD
UV 200-580 115-70* 2400 250 UE
UV 200-400 70-45* 3600 250 UF
UV/VIS 250-850 520 600 400 BB
VIS/NIR 300-1160** 860** 300 500 VA
VIS 360-1000 500 600 500 VB
VIS 300-800 250-200* 1200 500 VC
VIS 350-750 145-90* 1800 500 VD
VIS 350-640 75-50* 2400 500 VE
NIR 500-1050 500 600 750 NB
NIR 500-1050 220-150* 1200 750 NC
NIR 600-1160 350-300* 830 800 SI
NIR 600-1160** 560** 300 1000 IA
NIR 600-1160 500 600 1000 IB

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the smaller the range to select.rn**Please note that not all 2048 pixels will be used for the useable range.

Slit size (nm) 10 25 50 100 200 500
FWHM in nm
300 lines/mm grating 1.4 1.5 2.5 4.8 9.2 21.3
600 lines/mm grating 0.70-0.80* 0.75-0.85* 1.2 2.4 4.6 10.8
830 lines/mm grating 0.42-0.48* 0.50-0.58* 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.25-0.31* 0.37-0.43* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.17-0.21* 0.26-0.32* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.12-0.18* 0.18-0.24* 0.26-0.34* 0.44-0.64* 1.1 2.7
3600 lines/mm grating 0.08-0.12* 0.11-0.15* 0.19 0.4 0.8 1.8

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

AvaSpec-ULS2048x64TEC-EVO Thermoelectrically cooled fiber-optic spectrometer, 75 mm ultra-low stray light AvaBench, 2048×64 pixels, cooled and regulated low-noise CCD detector, USB3/ETH high-speed interface and replaceable slit, incl. AvaSoft-Basic, USB cable, desktop housing. Specify grating, wavelength range and options
DCL-UV/VIS-200 Detector Collection Lens to enhance sensitivity, Quartz, 200-1160 nm
SLIT-XX-RS Replaceable slit with SMA connector, specify XX=25,50,100,200,500 µm
SLIT-XX-RS-FCPC As SLIT-XX-RS, but with FC/PC connector
OSF-YYY Order-sorting filter for reduction of 2nd order effects, please specify YYY= 395, 475, 515, 550 or 600 nm
OSC Order-sorting coating with 600 nm long-pass filter for VA, BB (>350 nm) and VB gratings
OSC-UA Order-sorting coating with 350 and 600 nm long-pass filter for UA gratings
OSC-UB Order-sorting coating with 350 and 600 nm long-pass filter for UB or BB (<350 nm) gratings

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