Propagation of beams with any spectral, coherence and polarization properties in turbulent atmosphere

Olga Korotkova, Greg Gbur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

The combination of the angular spectrum representation (in space-frequency domain) and of the Rytov perturbation theory is applied for description of the second-order statistical properties of arbitrary (coherent and partially coherent) stochastic fields (whether scalar or electromagnetic) which propagate in turbulent atmosphere. The analysis is restricted to weak regime of atmospheric fluctuations. We first introduce the new method for scalar fields and derive expressions for the cross-spectral density function, from which the spectral and the coherence properties of the propagating fields can be determined. Next we extend the new technique to electromagnetic domain, i.e. we derive expressions for the elements of the 2×2 cross-spectral density matrix of the electric field from which its spectral, coherence and polarization properties can then be found. We illustrate the new method by applying it to propagation of several model beams through the atmosphere. In particular, we consider Gaussian beam, Bessel beam, Gaussian Schell-model beam in their scalar or electromagnetic versions. We find that the results obtained on the basis of the new theory are in good agreement with those obtained earlier by standard techniques.

Original languageEnglish (US)
Title of host publicationFree-Space Laser Communication Technologies XIX and Atmospheric Propagation of Electromagnetic Waves
DOIs
StatePublished - Apr 30 2007
Externally publishedYes
EventFree-Space Laser Communication Technologies XIX and Atmospheric Propagation of Electromagnetic Waves - San Jose, CA, United States
Duration: Jan 24 2007Jan 25 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6457
ISSN (Print)0277-786X

Other

OtherFree-Space Laser Communication Technologies XIX and Atmospheric Propagation of Electromagnetic Waves
CountryUnited States
CitySan Jose, CA
Period1/24/071/25/07

Keywords

  • Angular spectrum
  • Atmospheric propagation
  • Coherence
  • Polarization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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