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 ?
Thursday's Google doodle features a postage stamp like graphic with Sir CV Raman's head shot along with the diagram of the apparatus demonstrating the Raman effect.
The National Science Day is celebrated on February 28 to pay tribute to Dr CV Raman's find of Raman Effect.
The Raman effect occurs when a monochromatic light is shone on a researched material.
The wavelength change is called the Raman effect in honor of Indian physicist Chandrasekhara Venkata Raman, who first showed in the 1920s that measuring the changes in wavelengths of scattered photons can help scientists identify a compound's molecular makeup.
US) have asked their contributors--specialists in the use of the Raman effect for characterizing polymers and biological systems--to address selected areas of interest in applications of infrared and Raman techniques.
Now, Dr Juan Diego Ania-Castauun and his colleagues have used a special process called the Raman effect to transform a long optical fibre into an ultra-long laser.
Raman Spectroscopy is based on the Raman effect, which is the inelastic scattering of photons by molecules.
Standard Raman spectroscopy makes use of the Raman effect, which occurs when light scatters from a sample.
Based on the light scattering properties of the Raman Effect, the team used a laser to illuminate the side of a silver-tipped wire measuring about 10 nm across.
Raman of India discovered the Raman effect, and in 1930 he was awarded the Nobel Prize for his discovery.
There, with nothing more than string and wax, he observed a remarkable effect in light scattering, which has come to be called the Raman effect.
We will be discussing condensed phases and thus limit discussion to the vibrational Raman effect.