Chen, Y.Cai, YangjianEyyuboğlu, Halil T.Baykal, Yahya2016-04-282016-04-282008Chen, Y...et al. (2008). Scintillation properties of dark hollow beams in a weak turbulent atmosphere. Applied Physisc B-Lasers And Optics, 90(1), 87-92. http://dx.doi.org/10.1007/s00340-007-2825-10946-2171http://hdl.handle.net/20.500.12416/931The on-axis scintillation index for a circular dark hollow beam (DHB) propagating in a weak turbulent atmosphere is formulated, and the scintillation properties of a DHB are investigated in detail. The scintillation index for a DHB reduces to the scintillation index for a Gaussian beam, an annular beam and a flat-topped beam under certain conditions. It is found that the scintillation index of a DHB is closely related to the beam parameters and can be lower than that of a Gaussian beam, an annular beam and a flat-topped beam in a weak turbulent atmosphere at smaller waist sizes and longer propagation lengthseninfo:eu-repo/semantics/closedAccessElliptic Gaussian-BeamParaxial Optical-SystemsFlat-Topped BeamsLaser-BeamPropagation PropertiesGenerationCoherentAtomsFormulationMathieuArticle901879210.1007/s00340-007-2825-1