Speckle instability: coherent effects in nonlinear disordered media

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dc.creatorGremaud, Benoit
dc.creatorWellens, Thomas
dc.date2008-09-26
dc.date.accessioned2026-07-07T10:05:39Z
dc.date.available2026-07-07T10:05:39Z
dc.descriptionWe numerically investigate the properties of speckle patterns formed by nonlinear point scatterers. We show that, in the weak localization regime, dynamical instability appears, eventually leading to chaotic behavior of the system. Analysing the statistical properties of the instability thresholds for different values of the system size and disorder strength, a scaling law is emphasized. The later is also found to govern the smallest decay rate of the linear system, putting thus forward the crucial importance of interference effects. This is also underlined by the fact that coherent backscattering is still observed even in the chaotic regime.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0809.4533
dc.identifierhttp://arxiv.org/abs/0809.4533
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170072
dc.subjectMesoscale and Nanoscale Physics
dc.subjectChaotic Dynamics
dc.subjectAtomic Physics
dc.subjectQuantum Physics
dc.titleSpeckle instability: coherent effects in nonlinear disordered media
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