It has been used in vivo to detect cervical and skin cancers by examining intensity changes and wavenumber shifts of the distinctly narrow peaks it creates.
Three varieties of the diagnostic tool based on this phenomenon are ultraviolet resonance, near-infrared dispersive, and surface enhanced spectroscopy. It has been used in vivo to detect cervical and skin cancers by examining intensity changes and wavenumber shifts of the distinctly narrow peaks it creates. Because it is a fairly weak effect, sensitive detectors and laser sources must be used, and the much stronger fluorescence spectrum must be subtracted from the result. It occurs when a molecule enters a virtual excited state, then returns to a higher or lower vibrational state, emitting an altered photon. FTP, name this type of inelastic scattering that has both Stokes and anti-Stokes varieties and is named for an Indian physicist.
Three varieties of the diagnostic tool based on this phenomenon are ultraviolet resonance, near-infrared dispersive, and surface enhanced spectroscopy.
Raman effect or scattering