A New Type of Secondary Radiation

@article{RamanANT,
  title={A New Type of Secondary Radiation},
  author={Chandrasekhara Venkata Sir Raman and Kariamanikkam Srinivasa Krishnan},
  journal={Nature},
  volume={121},
  pages={501-502}
}
IF we assume that the X-ray scattering of the ‘unmodified’ type observed by Prof. Compton corresponds to the normal or average state of the atoms and molecules, while the ‘modified’ scattering of altered wave-length corresponds to their fluctuations from that state, it would follow that we should expect also in the case of ordinary light two types of scattering, one determined by the normal optical properties of the atoms or molecules, and another representing the effect of their fluctuations… 
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