Scintillation advantages of lowest order Bessel–Gaussian beams

Eyyuboğlu, Halil T.; Baykal, Yahya; Sermutlu, Emre; Cai, Yangjian

doi:10.1007/s00340-008-3096-1

Cited by 32 publications

(8 citation statements)

References 27 publications

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“…These include Gaussian [1][2][3][4][5][6], flat-topped [7][8][9], annular [11], sinusoidal-Gaussian [11][12][13], dark hollow [14], laser array [15], Bessel [16][17][18] and astigmatic [19,20] beams. Comprehensive presentations of scintillation results can be found in [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Partially coherent off-axis Gaussian beam scintillations

Baykal

Eyyuboğlu

Cai

2010

Journal of Modern Optics

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The scintillation index at the receiver origin is formulated for a partially coherent off-axis Gaussian beam in atmospheric turbulence by employing the extended Huygens-Fresnel principle. Our formula correctly reduces to the existing coherent and partially coherent Gaussian beam scintillation indices in the limiting cases. For off-axis Gaussian beams with imaginary, real and complex displacement parameters, the scintillation index reduces when the incidence becomes more incoherent. When the source size of the off-axis Gaussian beam increases, the scintillations increase for partially coherent sources and decrease for incoherent sources, the tendency being observed for imaginary, real and complex displacement parameters. For the fully coherent off-axis Gaussian beams, increase in the source size first causes an increase in the scintillations, eventually reaching saturation at large source sizes, the increase is not monotonic and may exhibit a peak around the Fresnel zone sized off-axis Gaussian sources. For all degrees of partial coherence, off-axis beams possessing imaginary displacement parameters exhibit larger scintillations when the displacement parameter increases for large sized incidences, however, for small sized incidences, scintillations stay at the same level when the imaginary displacement parameter increases, the fixed scintillation value being lower for more incoherent sources. For off-axis Gaussian sources possessing real displacement parameters, this behavior is reciprocal with respect to the source size, i.e. for all degrees of partial coherence, off-axis beams possessing real displacement parameters exhibit larger scintillations when the displacement parameter increases for small sized incidences, and for large sized incidences, scintillations stay at the same level when the real displacement parameter increases, the fixed scintillation value again being lower for more incoherent sources. For all degrees of partial coherence, off-axis Gaussian beams possessing imaginary displacement parameters exhibit larger scintillations than the off-axis Gaussian beams possessing real displacement parameters when the absolute value of displacement parameter increases for large sized incidences.

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Section: Introductionmentioning

confidence: 99%

Partially coherent off-axis Gaussian beam scintillations

Baykal

Eyyuboğlu

Cai

2010

Journal of Modern Optics

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“…The scintillation of elliptical Gaussian beams were investigated by Cai et al [72], and also found to have reduced scintillation under certain circumstances. In weak turbulence, Eyyuboğlu et al [73] demonstrated that Bessel-Gauss beams can also have somewhat reduced scintillation, as can modified Bessel-Gauss beams [74]. Flat-topped Gaussian beams have also shown some advantages [75].…”

Section: Scintillation Effects In Turbulencementioning

confidence: 99%

Partially coherent beam propagation in atmospheric turbulence [Invited]

Gbur

2014

J. Opt. Soc. Am. A

237

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“…The fluctuation characteristics of Bessel beams during propagation in a randomly inhomogeneous medium has also been investigated. [18][19][20] Relatively recent work 21 has been published in which computer simulation of the propagation of nondiffracting beams in a turbulent atmosphere is developed. The aim of this work is to find the values of the parameters of a coherent fundamental Bessel optical beam that provide the best stability of laser beams during propagation in a turbulent medium.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, research of the features of propagation in a turbulent atmosphere for the Bessel and Bessel-Gaussian beams is vigorously performed. [13][14][15][16][17][18][19][20][21] The majority of these works [13][14][15][16][17] is devoted to the analysis of various aspects of the behavior of the mean intensity of coherent 13,16,17 and partially coherent 14 BesselGaussian beams in randomly inhomogeneous media. In these researches, special attention is given to preservation consideration (or changes) during the propagation of topological structure of Bessel-Gaussian beams.…”

Section: Introductionmentioning

confidence: 99%

Mean intensity of a fundamental Bessel beam in turbulent atmosphere

Lukin

2014

Opt. Eng

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The question concerning stability of a fundamental Bessel beam propagated in a turbulent atmosphere is considered. In this study, features of the spatial structure of distribution of the mean intensity of a fundamental Bessel beam in a randomly inhomogeneous medium are analyzed in detail. Features of the propagation of an optical Bessel beam in a turbulent atmosphere are studied on the basis of the secondorder mutual coherence function of the field of an optical beam by using the extended Huygens-Fresnel principle. A condition has been derived for the mean intensity of a Bessel beam, which is a quantitative criterion for the formation of a beam along a long path in a turbulent atmosphere.

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Scintillation advantages of lowest order Bessel–Gaussian beams

Cited by 32 publications

References 27 publications

Partially coherent off-axis Gaussian beam scintillations

Partially coherent off-axis Gaussian beam scintillations

Partially coherent beam propagation in atmospheric turbulence [Invited]

Mean intensity of a fundamental Bessel beam in turbulent atmosphere

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