Raman spectroscopy is especially useful for reaction monitoring, product identification, remote sensing and the characterisation 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.

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

Also now available in the Raman systems is the new AvaSpec-HERO which is an ideal spectrometer for raman spectroscopy. It has lower dark noise (only 2 counts) which translates into far better performance. The superior signal/noise ratio (800:1) is also 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 S/N ratio. The higher NA optical bench results in a better sensitivity (twice as high as the ULS2048L), this leads to more photons impinging on the detector. 

 

Temperature control is also 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) means the AvaRaman system is delivers accurate and reproducible results.

 
Altogether, this provides a combination that is suitable for the more demanding applications (low light, better signal to noise, low noise ratio). 

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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 use of longer integration times to enhance the detection of small signals. All AvaRaman systems are delivered with dedicated AvaSoft-Raman software. Complementary Panorama-Pro software is available for Raman interpretation and functional group assignment.

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A selection of different probes and accessories are available to optimise for your application.

 

For more information on our software solutions including AvaSoft-Raman and Panorama-Pro, please refer to the software pages on this website.