We investigate optical spatial solitons in a two-dimensional quasi-phase-matched geometry involving two concurrent noncollinear quadratic processes. The model, formally equivalent to that ruling second-harmonic generation in the presence of a one-dimensional transverse nonlinear grating, supports a class of simultons with a large domain of stability. We also identify a regime where the general equations predict walking solitary waves.
Pasquazi, A., Assanto, G. (2009). Quadratic solitons in degenerate quasi-phase-matched noncollinear geometry. PHYSICAL REVIEW A, 80(2) [10.1103/PhysRevA.80.021801].
Quadratic solitons in degenerate quasi-phase-matched noncollinear geometry
ASSANTO, GAETANO
2009-01-01
Abstract
We investigate optical spatial solitons in a two-dimensional quasi-phase-matched geometry involving two concurrent noncollinear quadratic processes. The model, formally equivalent to that ruling second-harmonic generation in the presence of a one-dimensional transverse nonlinear grating, supports a class of simultons with a large domain of stability. We also identify a regime where the general equations predict walking solitary waves.File in questo prodotto:
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