Observation of One- and Two-dimensional Discrete Surface Spatial Solitons
نویسندگان
چکیده
The recent theoretical predictions and experimental observations of discrete surface solitons propagating along the interface between a one-or two-dimensional continuous medium and a one-or two-dimensional waveguide array are reviewed. These discrete solitons were found in second order (periodically poled lithium niobate) and third order nonlinear media, including AlGaAs, photorefractive media and glass, respectively.
منابع مشابه
Surface solitons in two-dimensional quadratic photonic lattices
Two-dimensional surface solitons have been recently predicted to exist as novel types of discrete solitons localized in the corners or at the edges of two-dimensional photonic lattices. These theoretical predictions were followed by the experimental observation of twodimensional surface solitons in optically-induced photonic lattices and waveguide arrays laser-written in fused silica. Important...
متن کاملCounterpropagating surface solitons in two-dimensional photorefractive lattices
We study interaction of counterpropagating beams in truncated two-dimensional photonic lattices induced optically in photorefractive crystals, and demonstrate the existence of counterpropagating surface solitons localized in the lattice corners and at the edges. We display intriguing dynamical properties of such composite optical beams and reveal that the lattice surface provides a strong stabi...
متن کاملNonlinear surface modes and Tamm states in periodic photonic structures
We study the formation of nonlinear localized modes and discrete surface solitons near the edges or interfaces of weakly coupled nonlinear optical waveguides, one-dimensional photonic crystals. We draw an analogy between the staggered nonlinear surface optical modes and the surface Tamm states known in the electronic theory. We discuss the crossover between discrete solitons inside the array an...
متن کاملObservation of a discrete family of dissipative solitons in a nonlinear optical system.
We report on the observation of a discrete family of spatial dissipative solitons in a simple optical pattern forming system, which is based on a modified single-mirror feedback arrangement. After a pitchfork bifurcation the system possesses two (nearly) equivalent coexisting states of different polarizations. The spatial solitons correspond to excursions from one of the two states serving as a...
متن کاملDiscrete surface solitons in two-dimensional anisotropic photonic lattices
We study nonlinear surface modes in two-dimensional anisotropic periodic photonic lattices and demonstrate that, in a sharp contrast to onedimensional discrete surface solitons, the mode threshold power is lower at the surface, and two-dimensional discrete solitons can be generated easier near the lattice corners and edges. We analyze the crossover between effectively oneand two-dimensional reg...
متن کامل