|
簡體中文|
English| Launch：2019-08-14 browse：1565753132times |
Raman spectra is a scattering spectrum. Raman spectroscopy is an analytical method based on the effect discovered by scientist C.V. Raman (Raman), which is used to analyze the information of molecular vibration and rotation from different scattering spectra. It is a nondestructive analytical technique that results from the interaction of light and chemical bonds within the material. It is also a light scattering technique. When the high-intensity incident light of the laser source is scattered by molecules, most of the scattered light has the same wavelength (color) as the incident laser, which cannot provide useful information. This scattering is called Rayleigh scattering. However, there is a very small part (about 1/109) of the scattered light whose wavelength (color) is different from the incident light. The wavelength change is determined by the chemical structure of the test sample (the so-called scattered material). This part of the scattered light is called Raman scattering. A Raman spectrum is usually composed of a certain number of Raman peaks, each of which represents the wavelength position and intensity of Raman scattered light.
