Exploring Raman Spectroscopy: Understanding the Science Behind it
Discover the intricacies of Raman Spectroscopy - from the basics to advanced theories including Rayleigh and Raman scattering, nature of Raman spectrum, Stokes and Anti-Stokes lines, rotational Raman spectrum for diatomic molecules, quantum theory of Raman spectra, and the concept of Raman shift. Unveil the essence of this analytical technique that sheds light on molecular structures and interactions.
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Presentation Transcript
Arts,Science and Commerce College Mokhada. Raman Spectroscopy
Raman Spectroscopy Raman Spectra are produce due to scattering of the radiation. Incident beam Sample Scattered Beam The Scattering of light is of two types 1.Rayleigh Scattering 2.Raman Scattering
Differences Rayleigh Scattering Raman Scattering No change in wavelength The energy of scattered and incident beam is same. The particle size of material should be comparable to wavelength of light used. Change in the wavelength The energy of scattered and incident beam is different. The particle size and the physical state is important.
Nature of Raman Spectrum The observed raman spectrum is the scattered beam.The beam has three types of wavelength. I.It contains the wavelengths which are same as that of the incident beam. II. It contains the wavelengths which are lesser than that of the incident beam. III. It contains the wavelengths which are greater than that of the incident beam.
Rotational Raman Spectrum for Diatomic Molecule
