Abstract
We consider experimentally three-wave resonant nonlinear interactions of fields propagating in nonlinear media. We investigate the spatial dynamics of two diffractionless beams at frequency omega1, omega2 which mix to generate a field at the sum frequency omega3. If the generated field at omega3 can sustain a soliton, it decays into solitons at omega1, omega2. We report the experimental evidence of the transition from steady frequency wave generation to solitonic decay in nonlinear optics.
Highlights
Three–wave resonant interaction (TWRI) is a universal model that recurs in various branches of science, such as plasma physics, optics, fluid dynamics and acoustics, as it describes the mixing of waves with different frequencies in weakly nonlinear and dispersive media [1]
We consider experimentally three–wave resonant nonlinear interactions of fields propagating in nonlinear media
We investigate the spatial dynamics of two diffractionless beams at frequency ω1, ω2 which mix to generate a field at the sum frequency ω3
Summary
Three–wave resonant interaction (TWRI) is a universal model that recurs in various branches of science, such as plasma physics, optics, fluid dynamics and acoustics, as it describes the mixing of waves with different frequencies in weakly nonlinear and dispersive media [1]. One finds solitary waves that result from a balance between nonlinearity and dispersion (or diffraction) as first predicted by Karamzin and Sukhorukov [13] This type of soliton waves have been intensively investigated experimentally over the past few years [14]. We report the experimental evidence of the transition from steady sum frequency generation to solitonic decay in optics. To our knowledge, this is the first experimental observation of diffractionless soliton dynamics
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