Accession Number : ADA619523


Title :   Sensing Random Electromagnetic Fields and Applications


Descriptive Note : Final performance rept. 1 May 2010-30 Apr 2015


Corporate Author : UNIVERSITY OF CENTRAL FLORIDA ORLANDO


Personal Author(s) : Dogariu, Aristide


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA619523


Report Date : 23 Jun 2015


Pagination or Media Count : 44


Abstract : Random electromagnetic fields (REF) exist in all forms and one common origin is a result of the interaction of coherent fields with randomly inhomogeneous media. This coherent light-matter interaction is a complex interference process leading to fields with strong fluctuations in intensity, fields that are most commonly known as speckle. A simple way to describe the intensity speckles is to consider the superposition of waves originating from discrete centers as a result of scattering. Different scattering regimes may vary from single scattering specific to most surface scattering to different degrees of multiple scattering characteristic to the interaction with three-dimensionally disordered media. When one single polarization component is analyzed, i.e. when the speckle field is measured through a polarizer, the intensity contrast often reaches unity. This is the case of the so-called fully developed speckle pattern, a manifestation of interference between a large numbers of wavelets with uniformly distributed random phases.


Descriptors :   *ELECTROMAGNETIC FIELDS , POLARIZATION , POLARIZERS , SCATTERING , THREE DIMENSIONAL


Subject Categories : Electricity and Magnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE