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.
Now the AvaSpec-HERO is integrated in 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 clearly 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 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 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-532 TEC||AvaRaman-532 HERO-EVO||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 (535-660nm),slit-25-FCPC, TE-Cooled, Standard: replaceable slit||AvaSpec-ULS2048L-TECnwith grating SI (785-1080nm), slit-25, DCL-UV/VIS,nTE cooled|
|Raman shift||100-5400 cm-1||100-3650 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-532TEC-USB2||Consisting of following elements: Solid state 50 mW laser 532 nm, FWHM 0.1 nm TE-cooled AvaSpec-ULS2048L-TEC-USB2 Spectrometer with 1200 lines/mm grating set 535-752 nm, 25 µm slit, DCL-UV/VIS AvaSoft-Raman software for the AvaRaman system, AvaRaman-GL-532 laser safety goggles|
|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 µm slit (replaceable) AvaSoft-Raman software for the AvaRaman system, AvaRaman-GL-532 laser safety goggles|
|AvaRaman-785TEC-USB2||Consisting of following elements: Solid state 500 mW laser 785 nm, FWHM 0.2 nm TE-cooled AvaSpec-ULS2048L-TEC-USB2 Spectrometer with 830 lines/mm grating set 785-1080 nm, 25 µm slit, DCL-UV/VIS-200 AvaSoft-Raman software for the AvaRaman system, AvaRaman-GL-785 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-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.nSpecify 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.nSpecify 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.nSpecify 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.nSpecify XXX=excitation wavelength, laser and spectrometer connection type|