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Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices
M. Heinrich, Y. V. Kartashov, L. P. R. Ramirez +7
We report on the experimental observation of two-dimensional surface solitons residing at the interface between a homogeneous square lattice and a superlattice that consists of alt…
Observation of two-dimensional superlattice solitons
M. Heinrich, Y. V. Kartashov, L. P. R. Ramirez +7
We observe experimentally two-dimensional solitons in superlattices comprising alternating deep and shallow waveguides fabricated via the femtosecond laser direct writing technique…
Vector solitons in nonlinear lattices
Yaroslav V. Kartashov, Boris A. Malomed, Victor A. Vysloukh +1
We consider two-component solitons in a medium with a periodic modulation of the nonlinear coefficient. The modulation enables the existence of complex multihump vector states. In…
Stabilization of multi-beam necklace solitons in circular arrays with spatially modulated nonlinearity
Yaroslav V. Kartashov, Boris A. Malomed, Victor A. Vysloukh +1
We address necklace solitons supported by circular waveguide arrays with out-of-phase modulation of nonlinearity and linear refractive index. Such two-dimensional necklace solitons…
Light tunneling inhibition and anisotropic diffraction engineering in two-dimensional waveguide arrays
Y. V. Kartashov, A. Szameit, V. A. Vysloukh +1
We address two-dimensional waveguide arrays where light tunneling into neighboring waveguides may be effectively suppressed by out-of-phase harmonic modulation of the refractive in…
Nonlinearity-induced broadening of resonances in dynamically modulated couplers
A. Szameit, Y. V. Kartashov, M. Heinrich +7
We report the observation of nonlinearity-induced broadening of resonances in dynamically modulated directional couplers. When the refractive index of the guiding channels in the c…
Power-dependent soliton steering in thermal nonlinear media
Fangwei Ye, Yaroslav V. Kartashov, Bambi Hu +1
We address the existence and properties of optical solitons excited in thermal nonlinear media with a transverse refractive index gradient. We show that in such a geometry one can…
Soliton shape and mobility control in optical lattices
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
We present a progress overview focused on the recent theoretical and experimental advances in the area of soliton manipulation in optical lattices. Optical lattices offer the possi…
Walking vector soliton caging and releasing
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
We address the formation and propagation of vector solitons in optical lattices in the presence of anisotropy-induced walk-off between ordinary and extraordinary polarized field co…
Observation of two-dimensional coherent surface vector lattice solitons
M. Heinrich, Y. V. Kartashov, A. Szameit +6
We report the first experimental observation of vector surface solitons, which form at the edge and in the corner of two-dimensional laser-written waveguide arrays. These elliptica…
Inhibition of light tunneling in waveguide arrays
A. Szameit, Y. V. Kartashov, F. Dreisow +7
We report the observation of almost perfect light tunneling inhibition at the edge and inside laser-written waveguide arrays due to band collapse. When the refractive index of the…
Parametric amplification of random lattice soliton swinging
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
We consider the propagation of solitons in media with an imprinted transverse periodic or parabolic refractive index modulation when the modulation depth slightly fluctuates along…
Light bullets in optical tandems
Lluis Torner, Yaroslav V. Kartashov
We address the concept of three-dimensional light bullet formation in structures where nonlinearity and dispersion are contributed by different materials, including metamaterials,…
Engineering soliton nonlinearities: From local to strongly nonlocal
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
We put forward a strategy to achieve synthetic nonlinearities where local and nonlocal contributions compete on similar footing, thus yielding intermediate tunable responses rangin…
Stable two-dimensional solitons in nonlinear lattices
Yaroslav V. Kartashov, Boris A. Malomed, Victor A. Vysloukh +1
We address the existence and stability of two-dimensional solitons in optical or matter-wave media, which are supported by purely nonlinear lattices in the form of a periodic array…
Observation of two-dimensional defect surface solitons
A. Szameit, Y. V. Kartashov, M. Heinrich +7
We report on the experimental observation of two-dimensional solitons located in a defect channel at the surface of a hexagonal waveguide array. The threshold power for the excitat…