Now showing items 1-9 of 9

    • Metastability of dark snoidal-type waves in quadrayic nonlinear media 

      Kartashov, Yaroslav V.; Egorov, A A; Zelenina, A S; Vysloukh, Victor A.; Torner Sabata, Lluís (2003-11)
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      We report the existence and basic properties of dark snoidal-type waves self-sustained in quadratic nonlinear media. Using a stability analysis technique, we reveal that they are almost completely stable, or metastable, ...
    • Rotary dipole-mode solitons in Bessel optical lattices 

      Kartashov, Yaroslav V.; Egorov, A A; Vysloukh, Victor A.; Torner Sabata, Lluís (2004-09)
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      We address Bessel optical lattices of radial symmetry imprinted in cubic Kerr-type nonlinear media and show that they support families of stable dipole-mode solitons featuring two out-of-phase light spots located in different ...
    • Shaping solitons properties in Mathieu lattices 

      Kartashov, Yaroslav V.; Egorov, A A; Vysloukh, Victor A.; Torner Sabata, Lluís (2006-01)
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      We address basic properties and stability of two-dimensional solitons in photonic lattices induced by the nondiffracting Mathieu beams. Such lattices allow for smooth topological transformation of radially symmetric Bessel ...
    • Soliton topology versus discrete symmetry in optical lattices 

      Kartashov, Yaroslav V.; Ferrando, A; Egorov, A A; Torner Sabata, Lluís (2005-09)
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      We address the existence of vortex solitons supported by azimuthally modulated lattices and reveal how the global lattice discrete symmetry has fundamental implications on the possible topological charges of solitons. We ...
    • Stabilization of one-dimensional periodic waves by saturation of the nonlinear response 

      Kartashov, Yaroslav V.; Egorov, A A; Zelenina, A S; Vysloukh, Victor A.; Torner Sabata, Lluís (2003-12)
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      We address the properties of (1+1)-dimensional periodic waves in conservative saturable cubic nonlinear media and discover that cnoidal- and snoidal-type waves are completely stable within a broad range of parameters. The ...
    • Stable multicolor periodic-wave arrays 

      Kartashov, Yaroslav V.; Egorov, A A; Zelenina, A S; Vysloukh, Victor A.; Torner Sabata, Lluís (2004-01)
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      We study the existence and stability of periodic-wave arrays propagating in uniform quadratic nonlinear media and discover that they become completely stable above a threshold light intensity. To the best of our knowledge, ...
    • Stable soliton complexes and azimuthal switching in modulated Bessel optical lattices 

      Kartashov, Yaroslav V.; Egorov, A A; Vysloukh, Victor A.; Torner Sabata, Lluís (2004-12)
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      We address azimuthally modulated Bessel optical lattices imprinted in focusing cubic Kerr-type nonlinear media, and reveal that such lattices support different types of stable solitons whose complexity increases with the ...
    • Stable soliton complexes in two-dimensional photonic lattices 

      Kartashov, Yaroslav V.; Egorov, A A; Torner Sabata, Lluís; Christodoulides, D N (2004-08)
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      We show that two-dimensional photonic Kerr nonlinear lattices can support stable soliton complexes composed of several solitons packed together with appropriately engineered phases. This may open up new prospects for ...
    • Surface vortex solitons 

      Kartashov, Yaroslav V.; Egorov, A A; Vysloukh, Victor A.; Torner Sabata, Lluís (2006-05)
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      We predict the existence of vortex solitons supported by the surface between two optical lattices imprinted in Kerr-type nonlinear media. We find that such surface vortex solitons can exhibit strongly noncanonical profiles, ...