Interaction of light with material waves in a medium
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 the carrier (represented as a quasiparticle) could be for example:
mass oscillation (acoustic) modes (called phonons);
charge displacement modes (in dielectrics, called polarons);
magnetic spin oscillation modes (in magnetic materials, called magnons).
and 25 Related for: Brillouin scattering information
In electromagnetism, Brillouinscattering (also known as Brillouin light scattering or BLS), named after Léon Brillouin, refers to the interaction of light...
well below the resonance frequency of the scattering medium (normal dispersion regime), the amount of scattering is inversely proportional to the fourth...
light on structure and chemical composition, whereas Brillouinscattering involves the scattering of photons by low frequency phonons providing information...
first Brillouin zone. Umklapp scattering is one process limiting the thermal conductivity in crystalline materials, the others being phonon scattering on...
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possible to produce strong Brillouinscattering at frequencies ranging from a few MHz to tens of GHz. Stimulated Brillouinscattering has been used to make...
techniques that rely on different scattering mechanisms and can be used to measure other parameters. Brillouinscatter occurs due to the interaction between...
of Low Loss Optical Fibers as Determined by Stimulated Raman and BrillouinScattering". Applied Optics. 11 (11): 2489–94. Bibcode:1972ApOpt..11.2489S....
frequencies scattering is almost frequency independent. Similar arguments were subsequently generalized to many glass forming substances using Brillouin scattering...
fluorescence; optical absorption and photoluminescence; Mössbauer, Raman and Brillouinscattering; positron annihilation and other signals can be measured from materials...
between electromagnetic waves and the transmitting medium (Brillouinscattering and Raman scattering), important in fiber optics, see below; Elastic collisions...
other quasi-particles may be observed directly in Raman scattering and Brillouinscattering. Photons can be scattered by matter. For example, photons...
utilized X-ray diffraction interference, Brillouinscattering, electron spin resonance, and neutron scattering. Many of these techniques only measure either...
frequencies (10 THz) are responsible for Raman scattering. Low frequency vibrations (10–30 GHz) cause Brillouinscattering. Energy is exchanged between the light...
frequency changes due to excitation of the atoms and molecules. Brillouinscattering occurs when the frequency of light changes due to local changes with...
approximation error and creates few visual artifacts Stimulated Brillouinscattering (SBS) is a nonlinear optical effect that limits the launched optical...
like those employed in piezoelectric delay lines and in stimulated Brillouinscattering. Waveguides are interesting objects of study from a strictly mathematical...
syndrome Short bowel syndrome Sick building syndrome Stimulated Brillouinscattering Polystyrene-b-polybutadiene-b-polystyrene block copolymers, for example...
"Systematic design study of an all-optical delay line based on Brillouinscattering enhanced cascade coupled ring resonators" (PDF). Journal of Optics...
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