Identification Cultural Relics With Raman Spectrometer

    Let a beam of monochromatic light with frequency ω I incident to the material, the molecule in the material interacts with the incident light to produce scattered light, such as the scattering light frequency changes and becomes ω I ±ω J, that is, a spectrum line is generated on both sides of the excitation spectrum line, this scattering is Raman scattering. In Raman scattering, the Raman displacement ω J is related to the vibrational energy level of the material molecule. Different substances have different vibrational and rotational energy levels and therefore have different Raman shifts. For the same substance, if the incident light is irradiated with different frequencies, the frequency of Raman scattering light is different, but its Raman displacement is a definite value. Therefore, Raman displacement is a physical quantity to characterize the vibration and rotational energy level of a substance molecule, and it can be used to study the molecular structure.

Test result:

Fig 1.Mural

Fig 2.Raman Spectra ofFesco Pigments

Fig 3.Blue And White Porcelain            

Fig 4Blue And White Porcelain Cobalt Blue Pigment Raman Spectrum        

Fig 4.Jade

Fig 5.Jadeite Raman spectrum        

Fig 6.Bronze

Fig 7.Bronze Ornaments

Fig 8.Raman Spectra OfBronze Ornaments
 

Conclusion: