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    • Light bullets in Bessel optical lattices with spatially modulated nonlinearity 

      Ye, F; Kartashov, Yaroslav V.; Hu, B; Torner Sabata, Lluís (2009-07-06)
      Article
      Open Access
      We address the stability of light bullets supported by Bessel optical lattices with out-of-phase modulation of the linear and nonlinear refractive indices. We show that spatial modulation of the nonlinearity significantly ...
    • Power-dependent soliton steering in thermal nonlinear media 

      Ye, F; Kartashov, Yaroslav V.; Hu, B; Torner Sabata, Lluís (2009-08)
      Article
      Restricted access - publisher's policy
      We address the existence and properties of optical solitons excited in thermal nonlinear media with a transverse refractive index gradient. The interplay between the nonlocality of the thermal nonlinearity and the linear ...