The technique of Raman spectroscopy was established in 1928 by Professor C.V. Raman. It is a light scattering technique and can be thought of in its simplest forms as a process where a photon o flight interacts with a sample to produce scattered radiation of different wavelengths. Raman spectroscopy has become an important analytical and research tool. It is extremely information-rich, and it is useful for chemical identification, characterization of molecular structures, and the effects of bonding, environmental and stress on samples. Raman spectroscopy can be used for a wide range of applications including forensic sciences, polymers, thin films, semiconductors and even for the analyses of fullerene structures and carbon nano-materials.
Raman microspectroscopy is one of the best instrumental techniques available for chemical characterization as it is a powerful non-destructive and non-contact method of sample analyses on a micrometer and smaller special resolution. The synergistic combination of Raman microspectroscopy and FT-IR microspectroscopy is unparalleled by other spectroscopy techniques in the characterization of molecular structures.