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Chandrasekhara Venkata Raman

Chandrasekhara Venkata Raman, Indian physicist (Thiruvanaikoil, Tiruchirappalli, Madras 07 November 1888 – Bangalore, Karnataka 21 November 1970)
Authored 465 publications

A new method for the absolute determination of frequency. Proc. Royal Soc. London, 1919.

Discovered with K.S. Krishnan and independently from Landsberg & Mandelshtam, inelastic scattering of light or Raman effect (1928)

With K.S. Krishnan. A new type of secondary radiation. Nature 31, 1928
Discovered the quantum photon spin

With S. Bhagavantam. Experimental proof of the Spin of the Spin. Nature 129:22, 1932.

Provided the correct theoretical explanation for the acousto-optic effect (Raman-Nagendra Nath theory of diffraction of light by ultrasonic waves in liquids)

With N.S. Nagendra Nath. Diffraction of Light by Ultrasonic Waves. Nature (London), 1936.


Demonstrated that the luminescence of a diamond excited by ultraviolet light is a characteristic of the diamond itself
First to study spectroscopically the flowers

With T.M.K. Nedungadi discovered a soft mode in quartz



Raman lines

Raman frequencies

Raman spectroscopy  

Raman spectrum  

Raman shifts  

Raman-Nath diffraction  

Raman-Nath parameter  

Raman-Nath approximation  

Raman process  

Raman active and inactive  

Raman intensities

Raman mechanism

Raman selection rules

Raman surface


Ramanite Thomas, Davidson & Hahn 2008 (Mineral)

Raman crater (Moon)

Physics Nobel Prize (1930)