Can any one tell me about "What did C.V.Raman do?" For which he got Nobel?

Question

i mean to say what do u mean by RAMAN EFFECT and where can we get notes on it

Answer 1

Raman worked on light scattered from gases and the surfaces of solids. Most of this light is scattered elastically, a phenomenon well described by Rayleigh (Rayleigh scattering is why the sky is blue).

However, a very tiny number of photons will manage to excite a molecule to vibrate or rotate. It will lose energy doing this, and the loss of energy will depend on the vibration caused. Only about 1 in 10 million photons will scatter inelastically in this way.

Quantum mechanics tells us that only very specific excitations are possible for a given molecule, so this inelastic scattering can tell us things about the materials present. The effect is called Raman scattering, and studying materials using it is called Raman spectroscopy.

Answer 2

He was a physicist from India who came up with a novel form of infra-red spectroscopy. See links below. There was a very interesting article about Raman Spectroscopy and its use for planetary exploration and also security at airports in Popular Science recently. I'll try and find a link.

Answer 3

http://en.wikipedia.org/wiki/C_v_raman
try this link