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2012 | 10 | 4 | 898-905
Tytuł artykułu

Gaussian beam diffraction in inhomogeneous and logarithmically saturable nonlinear media

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The method of paraxial complex geometrical optics (PCGO) is presented, which describes Gaussian beam (GB) diffraction and self-focusing in smoothly inhomogeneous and nonlinear saturable media of cylindrical symmetry. PCGO reduces the problem of Gaussian beam diffraction in nonlinear and inhomogeneous media to the system of the first order ordinary differential equations for the complex curvature of the wave front and for GB amplitude, which can be readily solved both analytically and numerically. As a result, PCGO radically simplifies the description of Gaussian beam diffraction in inhomogeneous and nonlinear media as compared to the numerical and analytical methods of nonlinear optics. The power of PCGO method is presented on the example of Gaussian beam evolution in logarithmically saturable medium with either focusing and defocusing refractive profile. Besides, the influence of initial curvature of the wave front on GB evolution in nonlinear saturable medium is discussed in this paper.
Wydawca

Czasopismo
Rocznik
Tom
10
Numer
4
Strony
898-905
Opis fizyczny
Daty
wydano
2012-08-01
online
2012-07-17
Twórcy
Bibliografia
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Typ dokumentu
Bibliografia
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bwmeta1.element.-psjd-doi-10_2478_s11534-012-0066-3
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