Accession Number : AD0787651

Title :   Intensity, Coherence, and Frequency Spectrum of a Focussed Beam in a Random Medium.

Descriptive Note : Physical sciences research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Fante,Donald L.

Report Date : 26 JUL 1974

Pagination or Media Count : 22

Abstract : Numerical results have been obtained for the effect of the strength of turbulence on the intensity, mutual coherence function, and frequency spectrum of a focussed beam propagating in a random medium having a von Karman spectrum for the index of refraction fluctuations. The author has presented conditions for when the turbulence affects the nature of the beam and has demonstrated the validity of these conditions by comparison with the numerical results. (Author)

Descriptors :   *Laser beams, *Turbulence, Intensity, Refractive index, Spectrum analysis

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE