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Raman and Rayleigh scattering occur when the dimensions of the scattering particles are less than 5 percent of the wavelength of the incident radiation. Both Rayleigh and Raman scattering are caused by the effect on the analyte of the fluctuating electromagnetic field that is associated with the passing incident radiation. The fluctuating field induces an electric dipole (separation of charges...
...absence of clouds most of this energy reaches the surface. The scattering of a fraction of the shortwave radiation—particularly of the shortest wavelengths by air molecules in a process called Rayleigh scattering—produces Earth’s blue skies.
The scattering of unpolarized light by very small objects, with sizes much less than the wavelength of the light (called Rayleigh scattering, after the English scientist Lord Rayleigh), also produces a partial polarization. When sunlight passes through the Earth’s atmosphere, it is scattered by air molecules. The scattered light that reaches the ground is partially linearly polarized, the...
Most incident photons are scattered by the sample with no change in frequency in a process known as Rayleigh scattering. To enhance the observation of the radiation at ν0 ± νi, the scattered radiation is observed perpendicular to the incident beam. To provide high-intensity incident radiation and to enable the observation of lines where...
...diffraction gratings. Perhaps his most significant early work was his theory explaining the blue colour of the sky as the result of scattering of sunlight by small particles in the atmosphere. The Rayleigh scattering law, which evolved from this theory, has since become classic in the study of all kinds of wave propagation.
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