Editing Electrical engineering (section)

===Photonics and optics===
{{Main|Photonics|Optics|Fiber-optic communication}}
[[File:Spectre.svg|thumb|280x280px|Electromagnetic spectrum showing wavelengths from radio waves (1&nbsp;km) to gamma rays (0.01&nbsp;nm). Visible light Information transmission in electrical engineering applications most frequently uses [[infrared light]] in the [[C band (infrared)|C band]] (1530–1565&nbsp;nm).]]

[[Photonics]] and [[optics]] deals with the generation, transmission, amplification, modulation, detection, and analysis of [[electromagnetic radiation]]. The application of optics deals with design of optical instruments such as [[lens]]es, [[microscope]]s, [[telescope]]s, and other equipment that uses the properties of electromagnetic radiation. Other prominent applications of optics include [[electro-optical sensor]]s and measurement systems, [[laser]]s, [[fiber-optic communication]] systems, and optical disc systems (e.g. CD and DVD). Photonics builds heavily on optical technology, supplemented with modern developments such as [[optoelectronics]] (mostly involving [[semiconductor]]s), laser systems, [[optical amplifier]]s and novel materials (e.g. [[metamaterial]]s).