Spontaneous and induced motion of optical patterns

Spontaneous and induced motion of optical patterns

The universality of two mechanisms of motion of patterns in nonlinear optics is demonstrated. In the first one, two-dimensional disordered patterns are shown to scroll with constant velocity after transients are discarded. In the second case, pattern motion is induced by background modulations. Spat...

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Veröffentlicht in:Applied physics. B, Lasers and optics Lasers and optics, 2005-11, Vol.81 (7), p.963-968
Hauptverfasser: Scroggie, A.J., Gomila, D., Firth, W.J., Oppo, G.-L.
Format: Artikel
Sprache:eng
Schlagworte:
Lasers
Locks
Maxima
Minima
Modulation
Nonlinear optics
Spontaneous
Two dimensional
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Zusammenfassung:The universality of two mechanisms of motion of patterns in nonlinear optics is demonstrated. In the first one, two-dimensional disordered patterns are shown to scroll with constant velocity after transients are discarded. In the second case, pattern motion is induced by background modulations. Spatially periodic patterns lock to maxima or minima of the underlying modulation depending on its wavevector.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-005-2019-7