Paraxial Optics

Authored by: Javier Alda

Encyclopedia of Optical and Photonic Engineering

Print publication date:  September  2015
Online publication date:  September  2015

Print ISBN: 9781439850978
eBook ISBN: 9781351247184
Adobe ISBN:


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This entry presents the paraxial approach and its most relevant uses. A combination of optical systems may be described by the paraxial approach. Some implications of the paraxial approach in the framework of the physical optics are analyzed. Equations describing the propagation of an electromagnetic wave are expanded and analyzed; they demonstrate that Fraunhofer diffraction lies within the paraxial regime. Finally, a discussion is presented on the relation of the paraxial approach with geometrical optics.

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