Ramanspektroskio

Ramanspektroskio, also known as Raman spectroscopy, is a spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system. It relies on inelastic scattering of monochromatic light, usually from a laser in the visible, near infrared, or near ultraviolet range. The Raman effect was first observed by Indian physicist Sir Chandrasekhara Venkata Raman in 1928, for which he was awarded the Nobel Prize in Physics in 1930.

In Raman spectroscopy, a sample is illuminated with a laser beam. Most of the scattered light from the sample has the same frequency as the incident light (Rayleigh scattering), but a small fraction of the scattered light is shifted in energy by the molecular vibrations of the sample. This shift in energy results in a shift in the frequency of the scattered light, which can be measured to provide information about the molecular structure of the sample.

Raman spectroscopy is widely used in chemistry, physics, biology, and materials science for identifying and analyzing substances. It is particularly useful for studying solids, liquids, and gases, as well as for examining the structure and composition of materials at the molecular level. Raman spectroscopy can also be used to study the dynamics of molecules and the interactions between them, providing valuable insights into the behavior of matter at the atomic and molecular scale.