Raman spectroscopy uses scattering of laser light to probe molecular structure. Of every million photons scattered, a single photon will interact with the vibrational states of a sample molecule and emit light of a different wavelength.

Although Raman spectra are low in intensity, Raman systems can be configured to explore molecular structure as effectively as IR spectroscopy. These Raman setups are easier to use, more versatile, and less expensive. Raman spectral signatures can be used in fundamental research, or matched to a known database for instant identification and quantification of materials.

Advantages of Raman Spectroscopy:

  • Versatility: Can be used to measure solids, liquids or powders, both in lab settings or in the field
  • Easily manageable: Requires no sample preparation; is non-contact and non-destructive; and produces no hazardous byproducts
  • Fast, accurate chemical identification: Raman spectral signatures can be matched to known libraries
  • Trace level detection: Can be used with Surface Enhanced Raman nanoparticle substrates to amplify weak Raman signals and measure trace amounts of samples including pesticides and narcotics

Modular Raman

The generation of a Raman spectrum begins with an excitation laser, routed to the sample via a Raman probe. Scattered Raman light is collected by the probe and measured by a spectrometer with the sensitivity and Raman shift range suitable for your application. Complete the system with a sample holder that accepts cuvettes, probes or SERS substrates, plus software and laser safety glasses.

At the heart of each modular Raman setup is the spectrometer. Options range from our high-performance QE Pro-Raman spectrometer to the recently introduced Ocean HDX Raman spectrometer, a more accessible option for budget-conscious researchers and product integrators.