|Title:||Modulation Instability and Pattern Formation in Spatially Incoherent Light Beams||Authors:||Kip, Detlef
Christodoulides, Demetrios N.
|Language:||eng||Subject (DDC):||DDC::500 Naturwissenschaften und Mathematik||Issue Date:||May-2000||Publisher:||American Association for the Advancement of Science||Document Type:||Article||Journal / Series / Working Paper (HSU):||Science||Volume:||290||Issue:||5491||Page Start:||495||Page End:||498||Publisher Place:||Washington, DC||Abstract:||
We present the first experimental observation of modulation instability of
partially spatially incoherent light beams in non-instantaneous nonlinear
media. We show that even in such a nonlinear partially coherent system (of
weakly-correlated particles) patterns can form spontaneously. Incoherent MI
occurs above a specific threshold that depends on the beams' coherence
properties (correlation distance), and leads to a periodic train of
one-dimensional (1D) filaments. At a higher value of nonlinearity, incoherent
MI displays a two-dimensional (2D) instability and leads to self-ordered arrays
of light spots.
|Organization Units (connected with the publication):||Universität Osnabrück||URL:||http://arxiv.org/abs/physics/0005083v1||ISSN:||00368075||DOI:||10.1126/science.290.5491.495|
|Appears in Collections:||Publications of the HSU Researchers (before HSU)|
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