Results 261 to 270 of about 10,202,208 (291)
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Intensity Fluctuations of Laser Array Beams in Non-Kolmogorov Turbulence
IEEE Journal on Selected Areas in Communications, 2015On-axis intensity fluctuations of laser array beams are evaluated when they are used in a weakly turbulent non-Kolmogorov atmosphere. Our formulation of the scintillation index is based on the Rytov method, which in the limiting case, correctly reduces to the known Gaussian beam scintillation index in weak Kolmogorov turbulence.
Hamza Gercekcioglu, Yahya Baykal
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Non-Kolmogorov Probability Theory
1997Now, the situation in the theory of probability is more or less the same as it was in geometry in 19th century. Many scientists understand that the Kolmogorov axiomatics [174] (1933) of the modern theory of probability cannot describe all probabilistic phenomenon which are observed in nature.
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Average spreading of a Gaussian beam array in non-Kolmogorov turbulence
Optics Letters, 2010By using the rms beam width as the parameter to characterize the spreading property, the average spreading of Gaussian beam array propagates in non-Kolmogorov turbulence is studied. Numerical examples reveal that the beam width depends on the exponent value alpha, and the beam width in non-Kolmogorov turbulence is different from that in Kolmogorov ...
Pu, Zhou +4 more
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Non-Kolmogorov Probability and Quantum Physics
1997We have already seen that the EPR definition of elements of reality is based on two purely mathematical elements: real numbers and real probabilities. As the Kolmogorov probability theory is the main mathematical model for describing real probabilities, we can speak of Kolmogorov physical reality.
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Anisotropic non-Kolmogorov turbulence phase screens with variable orientation
Applied Optics, 2015We describe a modification to fast Fourier transform (FFT)-based, subharmonic, phase screen generation techniques that accounts for non-Kolmogorov and anisotropic turbulence. Our model also allows for the angle of anisotropy to vary in the plane orthogonal to the direction of propagation. In addition, turbulence strength in our model is specified via a
Jeremy P, Bos +2 more
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Adaptive-optics compensation by distributed beacons for non-Kolmogorov turbulence
Applied Optics, 2001In optical propagation through atmospheric turbulence, the performance of compensation with adaptive optics depends on a beacon's spatial distribution. With distributed beacons, the inefficiency of the modal correction, which is defined as the ratio of the anisoplanatic error of the jth mode and the Zernike-coefficient variance, is derived by use of ...
C, Rao, W, Jiang, N, Ling
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Annular beam scintillations in non-Kolmogorov weak turbulence
Applied Physics B, 2012In a weakly turbulent atmosphere governed by the non-Kolmogorov spectrum, the on-axis scintillation index is formulated and evaluated when the incidence is an annular Gaussian type. When the power law of the non-Kolmogorov spectrum is varied, the scintillation index first increases, and reaches a peak value, then starts to decrease, and eventually ...
H. Gerçekcioğlu, Y. Baykal
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Scintillations of higher-order laser beams in non-Kolmogorov medium
Optics Letters, 2014In an atmospheric medium that shows a non-Kolmogorov turbulence behavior, the variation of the on-axis scintillation index is evaluated when higher-order laser modes are used as the excitation. The Rytov method is employed together with the equivalent structure constant, which makes our results valid in weak turbulence.
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