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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.
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.
Note: Not seeing our sample Raman setup illustration below? Try clicking the Refresh/Reload this page icon in your web browser.
Learn more tips from Ocean Insight's Dr. Amy Bauer and others on Raman spectroscopy and its applications in the Raman episode of our Applied Spectral Knowledge podcast series.
We offer suggestions for making sense of the sharp peaks and jagged shapes you’ll find in Raman spectra. Raman signatures can be used as is or matched to a known database for materials identification.