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Spatial Solitons in 2D Lattices
These authors describe their observation of two-color optical solitons in a 2D parametric photonic lattice with hexagonal symmetry in lithium niobate. Their results have enabled wavelength-controlled angular steering and transverse displacement of self-trapped filaments of light.
Spatial solitons are one of the most fascinating phenomena that result from the interplay between diffraction and nonlinearity: They offer unique possibilities for all-optical reconfigurable circuits and interconnects. Scientists have studied spatial solitons theoretically and have also demonstrated them experimentally in several physical systems with intensity-dependent refractive indices, ranging from glasses to semiconductors, and from photorefractive crystals to liquid crystals.
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