Raman imaging

Raman imaging is a technique that uses laser light to examine the molecular composition of a sample. When the laser hits the sample, most light is scattered unchanged, but some shifts slightly in frequency because of interactions with the molecules' vibrations. These tiny changes create a unique "spectral fingerprint" for different substances. By scanning the sample point-by-point and analyzing these fingerprints, Raman imaging constructs detailed, three-dimensional maps that reveal the distribution of specific molecules within the sample, providing valuable insights for fields like medical diagnostics, materials science, and chemistry.