Experimental study of electromagnetic Bessel-Gaussian Schell Model beams propagating in a turbulent channel

S. Avramov-Zamurovic, C. Nelson, S. Guth, O. Korotkova, R. Malek-Madani

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We report on experimental generation of Electromagnetic Bessel-Gaussian Schell-Model [EBGSM] beams via incoherent superposition of two mutually orthogonal electric field components, both originated from a laser source, whose phases are spatially modified by two nematic liquid crystal Spatial Light Modulators. The EBGSM beam is then passed through a weakly fluctuating turbulent channel and examined for contrast in its fluctuating intensity. It is demonstrated that after passing through turbulence the electromagnetic beam exhibits reduction in the scintillation index on the order of 50%, as compared with that for an equivalent scalar beam, in strong agreement with recent theoretical predictions.

Original languageEnglish (US)
Article number20554
Pages (from-to)207-215
Number of pages9
JournalOptics Communications
Volume359
DOIs
StatePublished - Jan 15 2016

Keywords

  • Propagation of electromagnetic laser beams in turbulence
  • Scintillation index
  • Spatially partially coherent laser beams

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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