Abstract
This chapter describes how radiative surface properties, namely emissivity, absorptivity, reflectivity, and transmissivity may be calculated using electromagnetic (EM) wave theory. The chapter commences with a discussion of the macroscopic Maxwell's equations, and EM wave propagation. Polarization of EM waves is discussed, followed by description of how EM wave theory may be used to calculate reflectivity and transmissivity at the interface of various types of media. Reflection and transmission in thin films are also formulated using EM theory. Fresnel's relations and Snell's law are introduced. The role of the absorptive and refractive index of a material and their relationship to the aforementioned radiative properties are also described in this chapter.
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