Raman effect

Raman effect

n. Physics

The alteration in frequency and random alteration in phase of light passing through a transparent medium.

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[After Chandrasekhara Venkata Sir Raman.]

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Raman effect

The alteration of the frequency and the phase of light as it passes through a transparent medium. The Raman effect is caused by small differences between the energy of photons absorbed by the molecules that make up the medium and the energy of photons re-emitted.