Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.2234
|Publisher DOI:||10.1073/pnas.1821970116||Title:||Directional soliton and breather beams||Language:||English||Authors:||Chabchoub, Amin
Babanin, Alexander V.
Steer, James N.
Bremer, Ton S. van den
Akhmediev, Nail N.
|Keywords:||directional localizations;extreme events;nonlinear waves;solitons||Issue Date:||26-Apr-2019||Source:||Proceedings of the National Academy of Sciences of the United States of America: 201821970 (2019-04-26)||Journal or Series Name:||Proceedings of the National Academy of Sciences of the United States of America||Abstract (english):||Solitons and breathers are nonlinear modes that exist in a wide range of physical systems. They are fundamental solutions of a number of nonlinear wave evolution equations, including the unidirectional nonlinear Schrödinger equation (NLSE). We report the observation of slanted solitons and breathers propagating at an angle with respect to the direction of propagation of the wave field. As the coherence is diagonal, the scale in the crest direction becomes finite; consequently, beam dynamics form. Spatiotemporal measurements of the water surface elevation are obtained by stereo-reconstructing the positions of the floating markers placed on a regular lattice and recorded with two synchronized high-speed cameras. Experimental results, based on the predictions obtained from the (2D + 1) hyperbolic NLSE equation, are in excellent agreement with the theory. Our study proves the existence of such unique and coherent wave packets and has serious implications for practical applications in optical sciences and physical oceanography. Moreover, unstable wave fields in this geometry may explain the formation of directional large-amplitude rogue waves with a finite crest length within a wide range of nonlinear dispersive media, such as Bose-Einstein condensates, solids, plasma, hydrodynamics, and optics.||URI:||http://hdl.handle.net/11420/2574||DOI:||10.15480/882.2234||ISSN:||1091-6490||Institute:||Strukturdynamik M-14||Type:||Sonstiges|
|Appears in Collections:||Publications (tub.dok)|
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