Electromagnetic Scattering

The electromagnetic field is governed by a set of experimental laws known as Maxwell's equations, which relate the field vectors to their sources. The behavior of the electromagnetic field at the interface between two different media is governed by the interface conditions, which can be simply derived by using the Maxwell's equations in their integral form. Maxwell's equations contain no information on the media in which the electromagnetic phenomena occur. This kind of information is provided by the constitutive equations, which interrelate the vector fields D,E,B, and H, and are specific for the medium where the propagation takes place. When an object is present in the propagation medium, the wave produced by the source interacts with it and the field distribution is affected by the presence of the scatterer. Controlled Vocabulary Terms electromagnetic field theory; Electromagnetic propagation; electromagnetic wave scattering; Maxwell equations