CHAPTER 1.1 The Electromagnetic Spectrum


Air Force Research Laboratory Rome, New York


The electromagnetic (EM) spectrum consists of all forms of EM radiation, from DC to light to gamma rays. A chart of the EM spectrum can be arranged in order of frequency or wavelength into a number of regions,1 usually wide in extent, within which the EM waves have some specified common characteristics (e.g., those characteristics relating to the production or detection of the radiation). A common example is the spectrum of the radiant energy in the region referred to as white light, which when dispersed by a prism will produce a rainbow of its constituent colors.

The EM spectrum is typically displayed as a function of frequency (or ...

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