Physics of Scattering by a Single Particle

The phase relations among the scattered wavelets depend on geometrical factors scattering direction, size, and shape. But the amplitude and phase of the induced dipole moment for a given frequency depend on the material of which the particle js composed. Thus, for a full understanding of scattering und absorption by small particles, we need to know how bulk matter responds to oscillatory electromagnetic fields this is the subject of Chapters 9 and 10. 

Methods for calculating scattering by particles are physically equivalent to the procedure outlined above, although their mathematical form may obscure the underlying physics. For certain classes of particles, however, the scattered 

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