Temat: 42.65.Tg - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical Beams in Nonlocal Nonlinear Media
Autorzy:: Królikowski, W.
Bang, O.
Wyller, J.
Rasmussen, J. J.
Powiązania:: https://bibliotekanauki.pl/articles/2035663.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Tg
42.65.Jx
Opis:: We discuss propagation of optical beams in nonlocal Kerr-like media with the nonlocality of general form. We study the effect of nonlocality on modulational instability of the plane wave fronts, collapse of finite beams and formation of spatial solitons.
Źródło:: Acta Physica Polonica A; 2003, 103, 2-3; 133-147
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Second Harmonic Generation, Beam Dynamics and Spatial Soliton Generation in Periodically Poled KTiOPO$\text{}_{4}$
Autorzy:: Kim, H.
Jankovic, L.
Stegeman, G.
Carrasco, S.
Torner, L.
Katz, M.
Eger, D.
Powiązania:: https://bibliotekanauki.pl/articles/2035660.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Jx
42.65.Ky
42.65.Tg
Opis:: Spatial solitons were investigated in periodically poled KTiOPO$\text{}_{4}$ under conditions of second harmonic generation and many new features associated with soliton generation in quasi-phase-matched samples were observed. The effects on the second harmonic generation tuning curves of the beam narrowing mechanisms responsible for soliton generation were found to be dramatic. It was demonstrated experimentally that the mutual collapse of the fundamental and harmonic beams is a complex phenomenon.
Źródło:: Acta Physica Polonica A; 2003, 103, 2-3; 107-119
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Gaussian Beam Diffraction in Inhomogeneous and Nonlinear Saturable Media
Autorzy:: Berczynski, P.
Powiązania:: https://bibliotekanauki.pl/articles/1399502.pdf
Data publikacji:: 2013-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.25.Bs
42.65.-k
42.65.Jx
42.65.Tg
42.81.Dp
42.81.-i
42.81.Ht
Opis:: The method of complex geometrical optics is presented, which describes Gaussian beam diffraction and self-focusing in smoothly inhomogeneous and nonlinear saturable media of cylindrical symmetry. Complex geometrical optics reduces the problem of Gaussian beam diffraction and self-focusing in inhomogeneous and nonlinear media to the system of the first order ordinary differential equations for the complex curvature of the wave front and for Gaussian beam amplitude, which can be readily solved both analytically and numerically. As a result, complex geometrical optics radically simplifies the description of Gaussian beam diffraction and self-focusing effects as compared to the other methods of nonlinear optics such as: variational method approach, method of moments, and beam propagation method. The power of complex geometrical optics method is presented on the example of Gaussian beam width evolution in saturable fibre with either focusing and defocusing refractive profiles. Besides, the influence of initial curvature of the wave front on Gaussian beam evolution in nonlinear saturable medium is discussed in this paper.
Źródło:: Acta Physica Polonica A; 2013, 124, 1; 56-61
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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