Raman Spectroscopy

For over 25 years, Omega Optical has been a leading manufacturer of high performance optical interference filters for a wide range of applications in Raman spectroscopy. We have recently developed a series of QuantaMAX- laser edge filters to attenuate, or block, scattered energy from reaching your detector, therefore improving the critical signal-to-noise. Combined with advances in laser and detector technology, our Raman filters are part of a revolution in Raman spectroscopy, expanding the use and applications of this analytical method. At the detector, both desired signal and unwanted scatter will be present, with the signal orders of magnitude lower than the scatter.

Scatter is the result of minor irregularities and characteristics of the system optics and application including uncontrolled light from the sample and holder. Longpass QuantaMAX Raman Edge filters are an excellent laser rejection solution when used in a collimated light path on the detector side of the system. These filters attenuate shorter wavelengths to ~0.7 edge wavelength. These filters also transmit 95% of Stokes Raman or fluorescence signal and exhibit very high contrast between the Rayleigh and Raman transmission. Angle tuning is required for optimal performance.

Available Raman Spectroscopy Filters

Omega currently offers 17 off-the-shelf filters in 25mm diameter. Also available in 12.5 and 50mm diameters as well as in custom configurations.

Additional Information
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