Raman spectroscopy is especially useful for reaction monitoring, product identification, remote sensing, and the characterization of highly scattering particulate matter in aqueous solutions. Based on the principle discovered by Prof. Chandrasekhara Venkata Raman, it measures the result of the inelastic scattering of photons.

Avantes uses the high-sensitivity AvaSpec spectrometers in combination with a 532 nm or 785 nm laser to give you the best result for your Raman measurements. The spectrometers are appropriately configured according to the wavelength of the laser. The power of the laser source is adjustable via software.

Now the AvaSpec-HERO is integrated into a Raman system as well.  
Because of the lower dark noise (only 2 counts), you’ll have a much better performance. The superior signal-to-noise ratio (800:1) is important when you’re dealing with small signals, which is typically the case in Raman. Also when small process changes need to be monitored in time, the HERO is superior as the small change process will lead to a small change in signal which can be discriminated by the excellent SN ratio. The higher NA optical bench results in a better sensitivity (twice as high as the ULS2048L). This will lead to more photons impinging on the detector. Temperature control is very important in Raman measurements to create stable results in time.

Cooling to -10 °C for the lowest noise performance and very stable cooling control ( +-0.1 °C accuracy) is delivering accurate and reproducible results. 
Combined, this provides you with a combination that is suitable for the more demanding applications (low light, better signal-to-noise, low noise ratio). 

All AvaRaman systems are equipped with cooling systems. Cooling the detector down to -35°C cooling versus ambient, reduces the noise figures by a factor of 2-3, enabling the usage of longer integration times to enhance the detection of small signals. All AvaRaman systems are delivered with special AvaSoft-Raman software. Complementary Panorama-Pro software is available for Raman interpretation and functional group assignment.

A selection of different probes is available to select the right one for your application. For more information on our software solutions including AvaSoft-Raman and Panorama-Pro, please refer to the software section on this website.

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AvaRaman Systems

(Currently not available) AvaRaman-532 TEC AvaRaman-532 HERO-EVO (Currently not available) AvaRaman-785 TEC
Signal to noise ratio 200:1 for Benzene 800:1 for Benzene 300:1 for Benzene
Resolution 10 cm-1 10 cm-1 7 cm-1
Spectrometer AvaSpec-ULS2048L-TEC with grating NC (535-752nm), slit-25, DCL-UV/VIS, TE Cooled AvaSpec-HERO with HSC1200-0.75 (535-695nm),slit-25-FCPC, TE-Cooled, Standard: replaceable slit AvaSpec-ULS2048L-TEC with grating SI (788-1080nm), slit-25, DCL-UV/VIS,TE cooled
Raman shift 100-5400 cm-1 100-4400 cm-1 100-3500 cm-1
Laser output 532 nm, 50mW 532 nm, 50mW 785 nm, 500 mW, Class 3b
Laser wavelength 532 nm 532 nm 785 nm
Laser bandwidth < 0.1 nm < 0.1 nm < 0.2 nm
Dimensions housing 240 mm (L) x 140 mm (W) x 250 mm (H) 240 mm (L) x 140 mm (W) x 250 mm (H) 240 mm (L) x 140 mm (W) x 250 mm (H)
AvaRaman-532HERO-EVO Consisting of following elements: Solid state 50 mW laser 532 nm, FWHM 0.1 nm, FCPF Connector TE-cooled AvaSpec-HERO Spectrometer with 1200 lines/mm grating set for 535-660 nm, 25 slit (replaceable) AvaSoft-Raman software for the AvaRaman system, AvaRaman-GL-532 laser safety goggles
AvaRaman-SH-3/8” Rugged sample holder for secure positioning of 3/8” Raman probes
AvaRaman-SH-1/2” Rugged sample holder for secure positioning of ½” Raman probes
AvaRaman-Calibrationtile PTFE White tile in holder for 3/8” Raman probe

AvaRaman Probes

Raman probes 2
AvaRaman-PRB-XXX 3/8” SS low-cost focusing probe with a 200 µm excitation fiber and 400 µm read fiber. Multiple focal lengths available (5 mm, 7.5 mm (standard), 10 mm). It can withstand 80°C. Manual shutter included, 1.5 m fibers. Specify XXX=excitation wavelength, laser and spectrometer connection type
AvaRaman-PRB-FP-XXX 1/2” SS focusing probe with a 200 µm excitation fiber and 400 µm read fiber. Multiple focal lengths available (5 mm (standard), 7.5 mm, 10 mm). It can withstand 80°C. Specify XXX=excitation wavelength, laser and spectrometer connection type
AvaRaman-PRB-FIP-XXX 5/8” SS immersible focusing probe for in-situ measurements with a 200 µm excitation fiber and 400 µm read fiber. It can withstand 200°C. Specify XXX=excitation wavelength, laser and spectrometer connection type
AvaRaman-PRB-FC-XXX 3/8” SS immersible process probe for in-situ measurements with a 200 µm excitation fiber and 400 µm read fiber. It can withstand 500°C and 3000psi, the probe optics provide complete background filtering. Specify XXX=excitation wavelength, laser and spectrometer connection type