Comparison Between Different Radiation and Scattering Processes

4J Comparison Between Different Radiation and Scattering Processes 

The scattered light in rainbows is almost fully polarized since the angle of incidence for the internal reflection is close to the Brewster angle (taii0 = .). 

The angle of observation for a rainbow is shown in Fig. 4.23. A rainbow is circular due to the spherical symmetry of the drops. From an aeroplane, in principle, a complete rainbow can be seen centred around the shadow of the aeroplane. Common atmospheric scattering phenomena such as the rainbow have been discussed in [4.50]. Other phenomena such as atmospheric haloes, mirages, the green flash etc. have been treated in [4.51]. 

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Table 4.1. Comparison between different radiation and scattering processes...

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