DSpace@Çankaya

Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Sırala: Sıra: Sonuçlar:

  • Propagation characteristics of higher-order annular Gaussian beams in atmospheric turbulence 
    Eyyuboğlu, Halil T.; Altay Arpalı, Serap; Baykal, Yahya (Elsevier Science, 2006-02-15)
    The propagation characteristics of higher-order annular Gaussian (HOAG) beams in turbulence are investigated. From a HOAG source plane excitation, the average intensity of the receiver plane is developed analytically. This ...
  • Propagation factor of partially coherent flat-topped beam array in free space and turbulent atmosphere 
    Yuan, Yangsheng; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya; Chen, Jun (Elsevier Science Ltd, 2012-05)
    Analytical expressions for the propagation factor of partially coherent radial flat-topped (FT) beam array in free-space and turbulent atmosphere are derived. Our formulae can be applied to study the beam propagation factors ...
  • Propagation factors of Hermite-Gaussian beams in turbulent atmosphere 
    Yuan, Yangsheng; Cai, Yangjian; Qu, Jun; Eyyuboğlu, Halil T.; Baykal, Yahya (Elsevier Science Ltd, 2010-11)
    Based on the extended Huygens-Fresnel integral and the second-order moments of the Wigner distribution function, an analytical formulae for the propagation factors (M-2-factors) of coherent and partially coherent one-dimensional ...
  • Propagation factors of laser array beams in turbulent atmosphere 
    Yuan, Yangsheng; Cai, Yangjian; Zhao, Chengliang; Eyyuboğlu, Halil T.; Baykal, Yahya (Taylor&Francis Ltd, 2010)
    The propagation factors of phased locked laser array beams of radial and rectangular symmetries in a turbulent atmosphere are investigated based on the extended Huygens-Fresnel integral and the Wigner distribution function. ...
  • Propagation of a generalized beam in ABCD system 
    Eyyuboğlu, Halil T. (2005)
    For a generalized Hermite sinosiodal/hyperbolic Gaussian beam passing through an ABCD system with a finite aperture, the propagation properties are derived using the Collins integral. The results are obtained in the form ...
  • Propagation of an Airy beam through the atmosphere 
    Ji, X.L.; Eyyuboğlu, Halil T.; Ji, Guangming; Xiaoling, Ji (Optical Soc Amer, 2013-01-28)
    In this paper, the effect of thermal blooming of an Airy beam propagating through the atmosphere is examined, and the effect of atmospheric turbulence is not considered. The changes of the intensity distribution, the ...
  • Propagation of cross beams through atmospheric turbulence 
    Yenice, Y. E.; Eyyuboğlu, Halil T.; Baykal, Yahya (Spie-Int Soc Optical Engineering, 2005)
    Propagation properties of cross beam in turbulent medium are studied. A cross beam is constructed by the sum of two highly asymmetric Gaussian beams placed along transverse axes. It is known that such beams, when propagating ...
  • Propagation of Elegant Higher-Order Gaussian Beams In Turbulent Atmosphere 
    Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Spie-Int Soc Optical Engineering, 2010)
    Propagation of elegant higher-order Gaussian beams in turbulent atmosphere is studied in detail. Analytical propagation formulae of elegant higher-order Gaussian beams in turbulent atmosphere are derived based on extended ...
  • Propagation of Hermite-cosh-Gaussian laser beams in turbulent atmosphere 
    Eyyuboğlu, Halil T. (Elsevier Science BV, 2005-01-17)
    The propagation characteristics of Hermite-cosh-Gaussian (HCG) beams in turbulence are studied. To this end, from a HCG source plane excitation, the average intensity of the receiver plane is developed analytically. This ...
  • Propagation of higher order Bessel-Gaussian beams in turbulence 
    Eyyuboğlu, Halil T. (Springer, 2007-07)
    The propagation characteristics of higher order Bessel-Gaussian beams travelling in turbulent atmosphere are investigated. Using extended Huygens-Fresnel principle, I formulated receiver plane intensity and solved it down ...
  • Propagation of laser array beams in a turbulent atmosphere 
    Cai, Y.; Chen, Y.; Eyyuboğlu, Halil T.; Baykal, Yahya (Springer, 2007-08-01)
    The propagation of phase-locked and non-phase-locked laser array beams of radial and rectangular symmetries in a turbulent atmosphere are investigated based on the extended Huygens-Fresnel integral. The beamlet used in our ...
  • Propagation of optical flat-topped gaussian beams in satellite links 
    Kamacıoğlu, Canan; Altay Arpalı, Serap; Baykal, Yahya; Yazgan, Erdem (IEEE, 2009)
    Propagation of optical flat-topped Gaussian beams in earth-satellite optical communication links is investigated where part of the link is turbulent atmosphere. Flat-topped Gaussian source field is obtained by superposing ...
  • Propagation of partially coherent beams after a source plane ring aperture 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Cai, Y. (Electromagnetics Acad, 2008)
    The propagation properties of partially coherent beams passing through a source placed ring aperture are examined. The derivation is based on the lowest order general beam formulation, such that our results are applicable ...
  • Propagation of various dark hollow beams through an optical system in turbulent atmosphere 
    Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Elsevier Science, 2010-10)
    The propagation of a dark hollow beam (DHB) of circular, elliptical or rectangular symmetry through aligned and misaligned ABCD optical systems in turbulent atmosphere is investigated. Analytical propagation formulae for ...
  • Propagation properties of anomalous hollow beams in a turbulent atmosphere 
    Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Elsevier Science, 2008-11-01)
    Propagation of circular and elliptical anomalous hollow beams in a turbulent atmosphere is investigated in detail. Based on the extended Huygens-Fresnel integral, analytical formulae for the average irradiance of circular ...
  • Propagation properties of cylindrical sinc Gaussian beam 
    Eyyuboğlu, Halil T.; Bayraktar, Mert (Taylor&Francis Ltd., 2016)
    We investigate the propagation properties of cylindrical sinc Gaussian beam in turbulent atmosphere. Since an analytic solution is hardly derivable, the study is carried out with the aid of random phase screens. Evolutions ...
  • Propagation properties of optical bottle beam in turbulence 
    Bayraktar, Mert; Eyyuboğlu, Halil T. (Spie-Soc Photo-Optical Instrumentation Engineers, 2019-03)
    We study the propagation properties of optical bottle beams in turbulent atmosphere. By allowing the mathematical expression of source plane to cover both the symmetric and asymmetric forms, the beam is propagated through ...
  • Prunable collision free random interleaver design 
    Gazi, Orhan (Springer, 2012-08)
    In this article we introduce a new collision free prunable random interleaver. The suggested interleaver is a joint structure involving rectangular and S-random interleaver. It comprises a general model for all kind of ...
  • Prunable collision free random interleaver design 
    Gazi, Orhan (2012-08)
    In this article we introduce a new collision free prunable random interleaver. The suggested interleaver is a joint structure involving rectangular and S-random interleaver. It comprises a general model for all kind of ...
  • Quasiclassical studies of Eley-Rideal and hot-atom reactions on a surface at 94 K : H(D) -> D(H)+Cu(111) 
    Vurdu, C. D.; Özçelik, Süleyman; Güvenç, Ziya B. (Elsevier Science BV, 2007-09-15)
    Reactions and reaction dynamics of gas-phase H(or D) atoms with D(or H) atoms adsorbed onto a Cu(111) surface have been investigated by the quasi-classical molecular dynamics method. To simulate the H(D) -> D(H) + Cu(111) ...