Publication

Historical perspective and basic principles

Luc Thévenaz
2022
Book Chapters

Abstract

We give a broad overview of the historical development and physics of Brillouin scattering. We discuss the seminal papers of Brillouin and Mandelstam and give the historical context of their research. We discuss the development of experiments and observations from the early, prelaser work to the present day. We then give a broad, nonmathematical explanation of Brillouin scattering as it is currently understood, and outline the different types of scattering as well as the conditions under which it occurs.

Official source

https://infoscience.epfl.ch/entities/publication/3108eb8a-3a2d-4272-96a9-83cb92cf46bc

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Luc Thévenaz
2022
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/3108eb8a-3a2d-4272-96a9-83cb92cf46bc

About this result

Related concepts (17)

Brillouin scattering

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).

Scattering

Scattering is a term used in physics to describe a wide range of physical processes where moving particles or radiation of some form, such as light or sound, are forced to deviate from a straight trajectory by localized non-uniformities (including particles and radiation) in the medium through which they pass. In conventional use, this also includes deviation of reflected radiation from the angle predicted by the law of reflection.

Rayleigh scattering

Rayleigh scattering (ˈreɪli ), named after the 19th-century British physicist Lord Rayleigh (John William Strutt), is the predominantly elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the radiation. For light frequencies well below the resonance frequency of the scattering particle (normal dispersion regime), the amount of scattering is inversely proportional to the fourth power of the wavelength. Rayleigh scattering results from the electric polarizability of the particles.

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