Raman Spectroscopy and Material Fingerprints

Raman spectroscopy identifies molecules and materials by their Raman fingerprint. It measures vibrational and other low-frequency modes in a sample. In chemistry, this makes it useful for identifying molecules. In solid-state physics, it helps characterize materials and examine crystal structure or crystallinity.

Raman spectroscopy exploits the scattering of light to gather molecular information unique to the material under investigation.

When light strikes a molecule, most of the energy is not absorbed, but scatters?at the same energy as the incident light. However, a small fraction of scattered radiation appears at energies differing from the inc...