Applied Physics B

, Volume 99, Issue 4, pp 801–807 | Cite as

Radius of curvature variations for annular, dark hollow and flat topped beams in turbulence

Article

Abstract

For propagation in turbulent atmosphere, the radius of curvature variations for annular, dark hollow and flat topped beams are examined under a single formulation. Our results show that for collimated beams, when examined against propagation length, the dark hollow, flat topped and annular Gaussian beams behave nearly the same as the Gaussian beam, but have larger radius of curvature values. Increased partial coherence and turbulence levels tend to lower the radius of curvature. Bigger source sizes on the other hand give rise to larger radius of curvature. Dark hollow and flat topped beams have reduced radius of curvature at longer wavelengths, whereas the annular Gaussian beam seems to be unaffected by wavelength changes; the radius of curvature of the Gaussian beam meanwhile rises with increasing wavelength.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Department of Electronic and Communication EngineeringÇankaya UniversityBalgat, AnkaraTurkey
  2. 2.Department of PhysicsSichuan Normal UniversityChengduChina

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