DSpace@Çankaya

Konu "Model" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Konu "Model" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Sırala: Sıra: Sonuçlar:

  • Comparison of wave structure functions for intensity profiles 
    Eyyuboğlu, Halil T. (Springer, 2009-03)
    We give a list of available wave structure functions (WSFs) of a spherical wave, simultaneously providing some derivation details. The aim is to assess the impact of these WSFs on intensity profiles of various beams ...
  • Effect of spatial coherence on the scintillation properties of a dark hollow beam in turbulent atmosphere 
    Yuan, Yangsheng; Chen, Yahong; Liang, Chunhao; Cai, Yangjian; Baykal, Yahya (Springer, 2013-03)
    With the help of a tensor method, we derive an explicit expression for the on-axis scintillation index of a circular partially coherent dark hollow (DH) beam in weakly turbulent atmosphere. The derived formula can be applied ...
  • Equivalence of structure constants in non-Kolmogorov and Kolmogorov spectra 
    Baykal, Yahya; Gerçekçioğlu, Hamza (Optical Soc Amer, 2011-12-01)
    We find the equivalence of the structure constants in non-Kolmogorov and Kolmogorov spectra in a turbulent atmosphere. As the reference point, the spherical wave scintillation index in a non-Kolmogorov medium is used. ...
  • Scintillation advantages of lowest order Bessel-Gaussian beams 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Sermutlu, Emre (Springer, 2008-08)
    For a weak turbulence propagation environment, the scintillation index of the lowest order Bessel-Gaussian beams is formulated. Its triple and single integral versions are presented. Numerical evaluations show that at large ...
  • Scintillation characteristics of cosh-Gaussian beams 
    Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2007-03-01)
    By using the generalized beam formulation, the scintillation index is derived and evaluated for cosh-Gaussian beams in a turbulent atmosphere. Comparisons are made to cos-Gaussian and Gaussian beam scintillations. The ...
  • Scintillation index of flat-topped Gaussian laser beam in strongly turbulent medium 
    Gerçekçioğlu, Hamza; Baykal, Yahya (Optical Soc Amer, 2011-08)
    In a strongly turbulent medium, the scintillation index of flat-topped Gaussian beams is derived and evaluated. In the formulation, unified solution of Rytov method is utilized. Our results correctly reduce to the existing ...
  • Scintillations of cos-Gaussian and annular beams 
    Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2007-01)
    Based on the generalized beam formulation, we derive the scintillation index and selectively evaluate it for cos-Gaussian and annular beams propagating in weak atmospheric turbulence. Dependence of the scintillation index ...
  • Scintillations of partially coherent multiple Gaussian beams in turbulence 
    Baykal, Yahya; Eyyuboğlu, Halil T.; Cai, Yangjian (Optical Soc Amer, 2009-04-01)
    For an incidence composed of partially coherent multiple Gaussian beams, Huygens-Fresnel principle-based on-axis scintillation index is formulated in a weakly turbulent homogeneous horizontal atmospheric path. Our general ...