Raman effect

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Ra·man ef·fect

a change in frequency undergone by monochromatic light scattered in passage through a transparent substance the characteristics of which determine the amount of change, yielding a spectrum in which the incident wavelength band is flanked by small satellite bands of greater and lesser wavelengths.
[Chandraswkhara W. Raman]

Raman effect

The effect that occurs when a beam of incident light causes rotational and vibrational transitions in molecules, resulting in scattered light which exits at a different frequency than incoming light.


Sir Chandrasekhara Venkata, Indian physicist and Nobel laureate, 1888-1970.
Raman effect - a change in frequency undergone by monochromatic light scattered in passage through a transparent substance whose characteristics determine the amount of change. Synonym(s): Raman shift
Raman shift - Synonym(s): Raman effect
Raman spectrum - the characteristic array of light produced by the Raman effect.
References in periodicals archive ?
In spite of the fact, that the particularity of RS is remarkable, the conversion efficiency of Raman effect is rather poor, since only a scarcity (about [10.
The Raman effect also lasts indefinitely, so the particles don't lose effectiveness as indicators as long as they stay in the body.
The new technique is based on a phenomenon called Raman Scattering or Raman Effect that explains the scattering of a photon ( a basic unit of light) and the gaining or losing of energy.
His topics include molecular symmetry, matrix representation of groups, quantum mechanics and group theory, atomic, rotational and vibrational spectrometry, light scattering and the Raman effect, and electronic spectroscopy of diatomics.
Raman spectroscopy measures the intensity of that scattering effect, called the Raman effect.
And soon enough, the Raman effect eclipsed Rahul's lingering charisma.
Using the Raman effect, the Agilent N4385A indoor system for fire and power cable applications and the N4386A outdoor system for oil and pipeline applications provide a complete temperature profile across distances of up to 8 km, with a spatial resolution of less than 1 m and a temperature resolution of less than 0.
As reported in today's issue of the journal Nature, Intel researchers have found a way to use the so-called Raman effect and silicon's crystalline structure to amplify light as it passes through it.