What is the use of Raman Spectrometer? For what kind of industry?
The principle of action is that the scattering molecule is originally in the base electron state, and the vibrational energy level is shown in fig.. When the incident light irradiation, polarization induced luminescence and the molecules can be seen as a virtual absorption, expressed as electronic transitions to the virtual state (Virtual state), the virtual electronic energy level transition to a lower level immediately and the light, is light scattering. Set back to the initial state of the electron, there are three cases as shown in the figure. Thus, the scattered light has both the same frequency spectrum as the incident light frequency and also the spectral line different from the incident light frequency. The former is called the Rayleigh line, and the latter is called the Raman line. In a Raman line, the spectral line whose frequency is smaller than the incident light frequency is called the Stokes line, and the spectral line whose frequency is greater than the incident light frequency is called the inverse Stokes lineRaman spectrum analyzer, laser is mainly to the measured object, through the optical path, reflecting light into the spectrometer, each sample has its own characteristic spectrum, then by comparing the characteristic spectrum to determine what is the main component of the sample. UV spectra can also be used for Raman purposes.Surface enhanced Raman spectroscopy (SERS) is a weak sample.
Now a lot of brands, this is mainly based on your use requirements to buy, relatively large, very comprehensive! Portable ones are usually developed for certain types of samples
Mainly used for Raman spectroscopy analysis, and now the group will be used in testing, security, analysis, identification and other industries
