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Tytuł:
Applied Magnetooptic Soliton Dynamics: TM and TE-TM-Driven Systems
Autorzy:
Boardman, A.
Xie, K.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2014565.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
Opis:
Ideas concerning the use of magnetooptic materials to control spatial solitons are introduced. It is shown that control of spatial solitons can be achieved through the use of TM modes TE-TM interactions. Potential functions can be defined through a Lagrangian analysis and optimisation is possible to facilitate energy transfer between TE and TM waves.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 7-16
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of Cavity Solitons Via Vectorial Second Harmonic Generation
Autorzy:
Peschel, U.
Michaelis, D.
Etrich, C.
Lederer, F.
Powiązania:
https://bibliotekanauki.pl/articles/2008213.pdf
Data publikacji:
1999-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
Opis:
We demonstrate that symmetry breaking in intra-cavity vectorial second harmonic generation may cause the formation of different types of localized structures. Moving as well as resting cavity solitons are observed and the interaction between them is studied.
Źródło:
Acta Physica Polonica A; 1999, 95, 5; 727-733
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Dynamics of χ$\text{}^{(2)}$ Solitary Waves: a Multiple Scales Approach
Autorzy:
Boardman, A. D.
Bontemps, P.
Xie, K.
Zharov, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/2008211.pdf
Data publikacji:
1999-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.-k
42.65.Tg
Opis:
The dynamics of solitary waves in second-order nonlinear materials are discussed using a multiple scales model. After making some comments on the applicability of other perturbation techniques the multiple scales approach is developed with a view to setting up a line of approach that, in principle, permits radiative effects to be modelled. After a closure condition is applied, equations for the evolution of dynamical variables are developed. Applications of these equations to loss and interactions are presented together with confirmation from numerical simulations. It is emphasised that the method is capable of extension to higher-order perturbations and, hence, into the solitary wave fusion region. The established interpretation of quasi-phase-matching fluctuations as loss is discussed and the simple problems of soliton (solitary wave) pair interactions in both loss-free and lossy media are analysed.
Źródło:
Acta Physica Polonica A; 1999, 95, 5; 705-718
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Necklace-Ring" Beams in Saturable Kerr Media with Square-Root Nonlinearity
Autorzy:
Petrović, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/2047852.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Sf
Opis:
Analytical and numerical investigation of the propagation of "necklace-ring" optical beams in Kerr-like saturable photorefractive media with square-root nonlinearity is carried out. Analytic expression for the propagation dynamics of the necklace beams is in good agreement with numerical findings.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 921-925
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation effects in superfluorescence
Autorzy:
Michalska-Trautman, R.
Powiązania:
https://bibliotekanauki.pl/articles/1075590.pdf
Data publikacji:
2016-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Sf
42.65.Tg
Opis:
The evolution of a superfluorescent pulse is studied in the region of large sample lengths. A solution to the Maxwell-Bloch semiclassical equations is found by using the inverse scattering method. It has the form of a one-soliton solution with varying parameters. Dependence on the pulse width and the retarded time is found without further approximations. These parameters are shown to be independent of the inhomogeneous broadening time. Their values are in good agreement with experiment. Asymmetry of the pulse is also investigated.
Źródło:
Acta Physica Polonica A; 2016, 130, 3; 734-736
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dancing Light: Counterpropagating Beams in Photorefractive Crystals
Autorzy:
Belić, M.
Petrović, M.
Jović, D.
Strinić, A.
Arsenović, D.
Prvanović, S.
Jovanović, R.
Petrović, N.
Powiązania:
https://bibliotekanauki.pl/articles/1814046.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Sf
Opis:
A review of work on the dynamical behavior of counterpropagating incoherent laser beams in photorefractive crystals is presented. Numerical study of counterpropagating beams of different type is carried out, in both space and time, using an appropriate theoretical model. The development of patterns in broad hyper-Gaussian counterpropagating beams in saturable Kerr-like media is investigated, by varying the width of beams. Rotational properties of counterpropagating mutually incoherent self-trapped vortex beams in optically induced fixed photonic lattices are also investigated numerically. One of the fundamental quantum mechanical phenomena is observed for the counterpropagating beams in photonic lattices, the tunneling of light from the first to the higher-order bands of the lattice band gap spectrum. The transfer of angular momentum from vortex beams to optically induced photonic lattices is also demonstrated. For the interacting beams it is found that the sum of angular momenta of counterpropagating components is not a conserved quantity, but the difference is. In the fixed lattices there is always a considerable loss of angular momentum.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 729-736
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dissipative Optical Solitons
Autorzy:
Skarka, V.
Aleksic, N.
Powiązania:
https://bibliotekanauki.pl/articles/1814360.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Sf
42.65.Tg
Opis:
The generation and nonlinear dynamics of multi-dimensional optical dissipative solitonic pulses are examined. The variational method is extended to complex dissipative systems, in order to obtain steady state solutions of the one-, two-, and three-dimensional complex cubic-quintic Ginzburg-Landau equation. A stability criterion is established fixing a domain of dissipative parameters for stable steady state solutions. Following numerical simulations, evolution of even asymmetric input pulse from this domain leads to stable dissipative solitons and light bullets.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 791-798
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spinning Optical Spatiotemporal Solitons in Quadratic Media
Autorzy:
Mihalache, D.
Powiązania:
https://bibliotekanauki.pl/articles/2015065.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Sf
Opis:
The unique features of the families of bright spinning spatiotemporal solitons (doughnuts or vortex light bullets) in dispersive quadratic media, including their stability, are presented. Both analytical results, obtained by means of a simple variational approximation, and numerical simulations are presented and compared. It was found that though the variational approximation is not very accurate, it correctly describes the qualitative features of the spinning spatiotemporal solitons. The spinning light bullets are subject to a strong azimuthal instability, which leads to the break-up of the spinning soliton into a set of fragments, each being a stable nonspinning spatiotemporal soliton.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 47-56
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-Component Spatial Optical Solitons in Photorefractive Medium
Autorzy:
Królikowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/2015077.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Hw
Opis:
We discuss properties of one- and two-dimensional multi-component spatial solitons. We present our recent results on formation and interaction of these solitons in photorefractive nonlinear crystal.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 67-76
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation of TE Waves in Nonlinear Waveguide
Autorzy:
Żegliński, G.
Wabia, M.
Powiązania:
https://bibliotekanauki.pl/articles/2015106.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.-k
42.65.Tg
Opis:
In the paper numerical calculations of the results of propagation in a nonlinear planar waveguide are performed. A type of nonlinearity is the Kerr nonlinearity. The wave equation, the solution of wave equation are shown, the dispersion equation, and the numerical solution of dispersion equation are analysed.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 111-118
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Finding Solitons in Bifurcations of Stationary Solutions of Complex Ginzburg-Landau Equation
Autorzy:
Timotijevic, D. V.
Derbazi, M.
Skarka, V.
Powiązania:
https://bibliotekanauki.pl/articles/2047837.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Sf
42.65.Tg
Opis:
Nonlinear dissipative systems, particularly optical dissipative solitons are well described by complex Ginzburg-Landau equation. Solutions of two- and three-dimensional complex cubic-quintic Ginzburg-Landau equation assuming exponential dependence on propagation parameter are studied. Approximate analytical stationary solutions of cubic-quintic Ginzburg-Landau equation are found by solving systems of ordinary differential equations. We are solving two-point boundary problems using adapted shooting method. Stable and unstable branches of the bifurcation diagram are identified using linear stability analysis. In this way we established conditions for generation and propagation of stable dissipative solitons in two and three dimensions. These results are in agreement with numerical simulation of cubic-quintic Ginzburg-Landau equation and the recently established approach based on variational method generalized to dissipative systems and therein established stability criterion.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 853-858
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gaussian-Induced Rotation in Triangular Photonic Lattices
Autorzy:
Jović, D.
Prvanović, S.
Jovanović, R.
Petrović, M.
Powiązania:
https://bibliotekanauki.pl/articles/2047884.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Sf
Opis:
Time-dependent rotation of counterpropagating mutually incoherent self-trapped Gaussian beams in periodic optically induced fixed photonic lattices is numerically investigated. Rotation occurs for some values of control parameters. For parameters of such rotation, the solitonic solutions are found using modified Petviashvili's method. It is shown that they correspond to the lowest values of propagation constant in the power diagrams and relation between observed rotation and less confined discrete solitonic solutions are demonstrated.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 1067-1072
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grey Solitons in Saturable Media with Nonlinear Dispersion and Self-Frequency Shift
Autorzy:
Jasiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/2035664.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.82.Et
Opis:
In the paper a special form of the generalized nonlinear Schrödinger equation in saturable medium with nonlinear dispersion and the self-frequency shift terms is considered. The solutions describing both the intensity and phase profiles of grey solitons propagating in this medium are obtained. Four cases of medium with or without saturation and with or without higher order terms are considered. For a square-two-level model of saturation analytical explicit solutions are derived. The relations between the medium and propagation parameters of solitons are discussed.
Źródło:
Acta Physica Polonica A; 2003, 103, 2-3; 149-160
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bright and Dark Solitons in Generalized Kerr-Like Media
Autorzy:
Jasiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/2015082.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.82.Et
Opis:
In the paper the propagation of short pulses in nonlinear Kerr-like medium is considered. Pulses are described by the nonlinear Schrödinger equation in which the generalization of nonlinear dispersion term and the self-frequency shift are taken into account. The solution of the equation in the form of quadrature is derived. Both the phase and profile of the pulse intensity are obtained. The cases of propagating bright and dark solitons in saturable Kerr-like medium are analyzed. Two models of saturation are considered. The explicit analytical expressions describing the Kerr limit are reported. The relations between the medium and propagation parameters are thoroughly discussed.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 77-86
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chirped optical solitons in birefringent fibers with parabolic law nonlinearity and four-wave mixing
Autorzy:
Triki, H.
Biswas, A.
Milović, D.
Belić, M.
Powiązania:
https://bibliotekanauki.pl/articles/1158116.pdf
Data publikacji:
2016-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.81.Dp
42.65.Tg
Opis:
We investigate exact soliton solutions with nonlinear chirp for the coupled nonlinear Schrödinger equations with cubic-quintic nonlinearity, self-steepening, self-frequency shift and four-wave mixing. The model governs the femtosecond pulse propagation in birefringent fibers. We introduce a new ansatz to obtain the nonlinear chirp associated with the propagating soliton pulses. New chirped soliton pair solutions with non-trivial chirping are found for the coupled nonlinear equations, illustrating the potentially rich set of solitonic pulse solutions of the model with higher-order effects. The solutions comprise two types of bright-W-shaped and bright-bright soliton pairs as well as kink and anti-kink pulses. Interestingly, the bright wave in the bright-W shaped soliton pairs possesses a platform underneath it, originating from the self-steepening and self-frequency shift effects. The corresponding chirp associated with each of these optical soliton pairs is also determined. It is shown that the nonlinear chirp is related to the pair intensity and determined by self-frequency shift and pause self-steepening. Parametric conditions for the existence and uniqueness of chirped solutions are given.
Źródło:
Acta Physica Polonica A; 2016, 130, 3; 718-726
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solitons in Nonlinear Directional Couplers with Optical Metamaterials by Trial Function Scheme
Autorzy:
Arnous, A.
Ekici, M.
Moshokoa, S.
Zaka Ullah, M.
Biswas, A.
Belic, M.
Powiązania:
https://bibliotekanauki.pl/articles/1032564.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.81.Dp
42.65.Tg
Opis:
This paper obtains soliton solutions to nonlinear directional couplers in optical metamaterials by the aid of trial function method. Three types of couplers are studied. Four forms of nonlinearity are considered. Bright, dark, and singular soliton solutions are retrieved. These soliton solutions appear with certain constraint conditions that guarantee their existence.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1399-1410
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hyper-Solitons in Nematic Liquid Crystals
Autorzy:
Strinic, A.
Petrović, M.
Belić, M.
Powiązania:
https://bibliotekanauki.pl/articles/1791208.pdf
Data publikacji:
2009-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.70.Df
42.65.Tg
Opis:
We study laser light propagation in a cell containing a liquid crystal in the nematic phase. We launch hyper-Gaussian beams and follow their behavior within the cell, in time and in three spatial dimensions, utilizing an appropriately developed theoretical model and a numerical procedure based on the fast Fourier transform. We demonstrate the formation of stable "hyper-soliton" breathers in a narrow region of beam intensities, for fixed other parameters. Hyper-solitons are similar in appearance and behavior to the usual solitons, formed by launching the usual Gaussian beams; however noticeable differences persist.
Źródło:
Acta Physica Polonica A; 2009, 116, 4; 510-512
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial Optical Solitons in Bulk Nematic Liquid Crystals
Autorzy:
Assanto, G.
Peccianti, M.
Conti, C.
Powiązania:
https://bibliotekanauki.pl/articles/2035665.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.70.Df
42.65.Tg
Opis:
We present an overview of our recent experimental results on two-dimensional optical spatial solitons in voltage biased planar cells with nematic liquid crystals. Excitation, induced waveguiding, and interactions are illustrated and interpreted in terms of the inherent re-orientational, non-resonant and nonlocal nonlinear response.
Źródło:
Acta Physica Polonica A; 2003, 103, 2-3; 161-167
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation of Spatial Solitons with Nonlinear Kerr Effect in Thermal Medium
Autorzy:
Gharaati, A.
Elahi, P.
Cari, S.
Powiązania:
https://bibliotekanauki.pl/articles/2047846.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Sf
42.65.Tg
42.65.Wi
Opis:
In this paper, the propagation and behavior of spatial solitons of inhomogeneous nonlinear Schrödinger equation in thermal medium will be investigated analytically. The theoretical model is established by considering the change of refractive index of medium due to heat deposition of entrance beam. The soliton like solution in such thermal medium was derived. The effect of input pump power and beam radius on the behavior of solitons will be studied finally.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 891-896
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unique Properties of Quadratic Solitons
Autorzy:
Stegeman, G. I.
Fuerst, R.
Malendevich, R.
Schiek, R.
Baek, Y.
Baumann, I.
Sohler, W.
Leo, G.
Assanto, G.
Bosshard, Ch.
Günter, P.
Powiązania:
https://bibliotekanauki.pl/articles/2008209.pdf
Data publikacji:
1999-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Yj
42.65.-k
Opis:
Quadratic spatial solitons exist in media with second order nonlinearities near the phase-matching condition for frequency mixing processes involving two or three waves of different frequency. Discussed here are a number of properties of these special solitons which are different from those of other spatial solitons which rely on optically induced index changes for guiding. First, the self-guiding properties of quadratic solitons are shown to have completely different origins than solitons which rely on index changes. Second, it is shown that there exists a large variety of quadratic solitons which contain two or three distinct spectral components with relative amplitudes depending on the phase mismatch, dimensionality of the propagation geometry, the soliton power and the launching conditions. Third, under appropriate conditions, solitons can be formed even when the group velocity directions for the spectral components lead to walk-off under normal circumstances. Fourth, for type II phase-matching in bulk crystals, seeded interactions lead to saturating amplifier characteristics.
Źródło:
Acta Physica Polonica A; 1999, 95, 5; 691-703
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stationary Solutions of the Electromagnetic TE Waves Propagating Along a Single Interface Between the Two Kerr-Type Nonlinear Media
Autorzy:
Wabia, M.
Zaleśny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2008274.pdf
Data publikacji:
1999-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.-k
42.65.Tg
42.65.Wi
Opis:
Propagation of the TE electromagnetic waves in self-focusing medium is governed by the nonlinear Schrödinger equation. In this paper the stationary solutions of this equation have been systematically presented. The phase-plane method, qualitative analysis, and mechanical interpretation of the differential equations are widely used. It is well known that TE waves can be guided by a single interface between two semi-infinite media, providing that one of the media has a self-focusing (Kerr-type) nonlinearity. This special solution is called a spatial soliton. In this paper our interests are not restricted to the soliton solutions. In the context of the nonlinear substrate and cladding we have found solutions which could be useful to describe also the incident light in a nonlinear medium. This result is the main point of the paper. Some of the presented stationary solutions were already used in a similar optical context in the literature but we show a little wider class of solutions. In the last section we review and illustrate some results concerning the spatial soliton solution.
Źródło:
Acta Physica Polonica A; 1999, 95, 5; 801-812
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Embedded Soliton Solutions: A Variational Study
Autorzy:
Pal, D.
Golam Ali, Sk.
Talukdar, B.
Powiązania:
https://bibliotekanauki.pl/articles/1813496.pdf
Data publikacji:
2008-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
05.45.Yv
Opis:
We use a variational method to construct soliton solutions for systems characterized by opposing dispersion and competing nonlinearities at fundamental and second harmonics. We show that both ordinary and embedded solitons tend to gain energy when the second harmonic field becomes weaker than the first harmonic field.
Źródło:
Acta Physica Polonica A; 2008, 113, 2; 707-712
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steering and Locking of Discrete Solitons in Optical Waveguide Arrays
Autorzy:
Peschel, U.
Lederer, F.
Morandotti, R.
Aitchison, J. S.
Eisenberg, H.
Silberberg, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2015072.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Tg
42.65.Wi
42.82.Et
Opis:
By operating an AlGaAs waveguide array at the half band gap, we experimentally demonstrate basic features of discrete systems, which do not appear in the corresponding continuous counterpart - the slab waveguide. Under selected initial conditions, we observed nonlinearly induced locking of an initially moving soliton to the input waveguide. If the power is even higher, originally locked beams start to move again, but in a direction opposite to the initial tilt.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 57-65
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 35

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