ⓘ Category:Raman spectroscopy

Raman optical activity

Raman optical activity is a vibrational spectroscopic technique that is reliant on the difference in intensity of Raman scattered right and left circularly polarised light due to molecular chirality.

Spatially offset Raman spectroscopy

Spatially offset Raman spectroscopy is a variant of Raman spectroscopy that allows highly accurate chemical analysis of objects beneath obscuring surfaces, such as tissue, coatings and bottles. Examples of uses include analysis of: bone beneath skin, tablets inside plastic bottles, explosives inside containers and counterfeit tablets inside blister packs. There have also been advancements in the development of deep non-invasive medical diagnosis using SORS with the hopes of being able to detect breast tumors. Raman spectroscopy relies on inelastic scattering events of monochromatic light t ...

Stimulated Raman spectroscopy

Stimulated Raman spectroscopy, also referred to as stimulated raman scattering is a form of spectroscopy employed in physics, chemistry, biology, and other fields. The basic mechanism resembles that of spontaneous Raman spectroscopy: a pump photon, of the angular frequency ω p {\displaystyle \omega _{p}}, which is absorbed by a molecule has some small probability of inducing some vibrational transition, as opposed to inducing a simple Rayleigh transition. This makes the molecule emit a photon at a shifted frequency. However, SRS, as opposed to spontaneous Raman spectroscopy, is a third-ord ...