DSpace@Çankaya

Yazar "Cai, Yangjian" için listeleme

Yazar "Cai, Yangjian" için listeleme

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  • Scintillation properties of dark hollow beams in a weak turbulent atmosphere 
    Chen, Y.; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Springer, 2008-01)
    The 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 ...
  • Scintillations of laser array beams 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Cai, Yangjian (Springer, 2008-05)
    The scintillation index of a laser array beam is analytically derived and numerically evaluated for weak turbulence conditions. On-axis as well as off-axis positions of the receiver plane are considered. Our graphical ...
  • 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 ...
  • Spectral shifts of general beams in turbulent media 
    Eyyuboğlu, Halil T.; Cai, Yangjian; Baykal, Yahya (IOP Publishing Ltd, 2008-01)
    Using the concept of generalized beam, by applying the extended Huygens-Fresnel principle, we derive the spectrum for partially coherent cosh-Gaussian, cos-Gaussian, Gaussian and annular Gaussian beams propagating in ...
  • State of polarization of a stochastic electromagnetic beam in an optical resonator 
    Korotkova, Olga; Yao, Min; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2008-11)
    On the basis of the unified theory of coherence and polarization, we investigate the behavior of the state of polarization of a stochastic electromagnetic beam in a Gaussian cavity. Formulations both in terms of Stokes ...
  • Statistical properties of a radially polarized twisted Gaussian Schell-model beam in an underwater turbulent medium 
    Peng, Xiaofeng; Liu, Lin; Cai, Yangjian; Baykal, Yahya (Optical Soc Amer, 2017-01-01)
    Average intensity and the normalized powers of the completely polarized and the completely unpolarized portions of a radially polarized twisted Gaussian Schell-model (TGSM) beam propagating in underwater turbulence are ...
  • Twist phase-induced reduction in scintillation of a partially coherent beam in turbulent atmosphere 
    Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2012-01-15)
    The scintillation index of a Gaussian Schell-model beam with twist phase (i.e., twisted GSM beam) in weak turbulent atmosphere is formulated with the help of a tensor method. Variations of the scintillation index of a ...