Sensing Random Electromagnetic Fields and Applications
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 23, 2015
- Accession Number
- ADA619523
Entities
People
- Aristide Dogariu
Organizations
- University of Central Florida