Hydrodynamic instability of multiple four-wave mixing

Hydrodynamic instability of multiple four-wave mixing

In the regime of normal dispersion and low-frequency detunings (or high powers), four-wave mixing is shown to undergo a hydrodynamic type of instability. Such instability involves the formation of shocks (steep fronts) from smooth initial data that are regularized through the appearance of trains of...

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Veröffentlicht in:Optics letters 2010-12, Vol.35 (23), p.3967-3969
Hauptverfasser: TRILLO, Stefano, VALIANI, Alessandro
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Phase conjugation, optical mixing
photorefractive and kerr effects
Physics
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Zusammenfassung:In the regime of normal dispersion and low-frequency detunings (or high powers), four-wave mixing is shown to undergo a hydrodynamic type of instability. Such instability involves the formation of shocks (steep fronts) from smooth initial data that are regularized through the appearance of trains of fast oscillations, which exhibit solitonlike behavior, colliding elastically.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.003967