Abstract:
When light interacts with a material, it can be transmitted, absorbed or scattered. The
scattered light contains both elastic and inelastic components. The scattering of light
without any change in frequency (elastic scattering) is known as Rayleigh scattering. The
blue colour of the sky is attributed to the Rayleigh scattering and can be explained by the
well-known ?-4 law put forward by Lord Rayleigh for the light scattering by objects
smaller than the wavelength of incident light [1]. The elastic scattering from the scattering
centres consisting of the spherical particles of any diameter is called Mie scattering [2].
The scattering intensity in this case generally does not have a strong dependence on the
wavelength, but is sensitive to the particle size. Mie scattering coincides with Rayleigh
scattering when the diameter of the particles is much smaller than the wavelength of the
light.
