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Brillouin scattering - Wikipedia

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In electromagnetism, Brillouin scattering (also known as Brillouin light scattering or BLS), named after Léon Brillouin, refers to the interaction of light with the material waves in a medium (e.g. electrostriction and magnetostriction). It is mediated by the refractive index dependence on the material properties of the medium; as described in optics, the index of refraction of a transparent material changes under deformation (compression-distension or shear-skewing). The result of the interaction between the light-wave and the carrier-deformation wave is that a fraction of the transmitted light-wave changes its momentum (thus its frequency and energy) in preferential directions, as if by diffraction caused by an oscillating 3-dimensional diffraction grating. If the medium is a solid crystal, a macromolecular chain condensate or a viscous liquid or gas, then the low frequency atomic-chain-deformation waves within the transmitting medium (not the transmitted electro-magnetic wave) in th

Brillouin scattering - Wikipedia Jump to content From Wikipedia, the free encyclopedia Interaction of light with material waves in a medium In electromagnetism , Brillouin scattering or Brillouin light scattering ( BLS ), named after Léon Brillouin , refers to the interaction of light with the material waves in a medium (e.g. electrostriction and magnetostriction , or radiation pressure). It is mediated by the refractive index dependence on the material properties of the medium; as described in optics , the index of refraction of a transparent material changes under deformation (compression-di

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