Browsing by Author "Wang, Fei"

Now showing 1 - 4 of 4

Citation Count: Wang, Fei...et al. "Diffraction properties of partially coherent elegant high-order beam", Piers 2010 Xi'an: Progress İn Electromagnetics Research Symposium Proceedings, Vols 1 And 2, (2010).
Diffraction properties of partially coherent elegant high-order beam
(Electromagnetics Acad, 2010) Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya; 7688; 7812
The diffraction properties of a partially coherent elegant higher-order beam in free space are investigated in detail. It is found that the diffraction properties of a partially coherent elegant higher-order beam upon propagation are closely related to its initial coherence. A partially coherent elegant higher-order beam spreads more slowly than a partially coherent standard higher-order beam, which has potential application in free-space optical communications.
Citation Count: Wang, Fei...et al. "Propagation of elegant higher-order Gaussian beams in turbulent atmosphere", Atmospheric and Oceanic Propagation of Electromagnetic Waves Iv, Vol. 7588, (2010).
Propagation of Elegant Higher-Order Gaussian Beams In Turbulent Atmosphere
(Spie-Int Soc Optical Engineering, 2010) Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya; 7688; 7812
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 Huygens-Fresnel integral. The intensity and spreading properties of elegant higher-order Gaussian beams and standard higher-order Gaussian beams in turbulent atmosphere are studied numerically and comparatively. It is found that the propagation properties of elegant higher-order Gaussian beams and standard higher-order Gaussian beams are much different from their properties in free space The standard higher-order Gaussian beams spread more rapidly than the elegant higher-order Gaussian beams in turbulent atmosphere.
Citation Count: Yuan, Y...et al. (2013). Scintillation index of a multi-Gaussian Schell-model beam in turbulent atmosphere. Optics Communications, 305, 57-65. http://dx.doi.org/10.1016/j.optcom.2013.04.076
Scintillation index of a multi-Gaussian Schell-model beam in turbulent atmosphere
(Elsevier Science Bv, 2013) Yuan, Yangsheng; Liu, Xianlong; Wang, Fei; Chen, Yahong; Cai, Yangjian; Qu, Jun; Eyyuboğlu, Halil T.; 7688
Multi-Gaussian Schell-model (MGSM) beam was introduced recently [Sahin and Korotkova, Opt. Lett. 37 (2012) 2970; Korotkova et al., J. Opt. Soc. Am. A 29 (2012) 2159]. In this paper, an explicit expression for the scintillation index of a multi-Gaussian Schell-model (MGSM) beam in weakly or extremely strong turbulent atmosphere is derived with the help of a tensor method. Applying the derived formulae, the scintillation properties of a MGSM beam and a GSM beam in weakly or extremely strong turbulent atmosphere are studied numerically and comparatively. Our results show that a MGSM beam has advantage over a GSM beam for reducing turbulence-induced scintillation, which will be useful for long-distance free-space optical communications.
Citation Count: Wang, F., Cai, Y., Eyyuboğlu, H.T., Baykal, Y. (2012). Twist phase-induced reduction in scintillation of a partially coherent beam in turbulent atmosphere. Optics Letters, 37(2), 184-186.
Twist phase-induced reduction in scintillation of a partially coherent beam in turbulent atmosphere
(Optical Soc Amer, 2012) Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya; 7688; 7812
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 twisted GSM beam on propagation in turbulent atmosphere are studied in detail. It is interesting to find that the scintillation index of a twisted GSM beam can be smaller than that without twist phase in weak turbulent atmosphere. Thus, modulation of the twist phase of a partially coherent beam provides a new way to reduce turbulence-induced scintillation