Vortices and defect statistics in two-dimensional optical chaos
We present the first direct experimental evidence of topological defects in nonlinear optics. For increasing Fresnel numbers F, the two-dimensional field is characterized by an ...
We present the first direct experimental evidence of topological defects in nonlinear optics. For increasing Fresnel numbers F, the two-dimensional field is characterized by an ...
By increasing the Fresnel number F of a ring cavity with photorefractive gain, we show the transition between a low-F regime, where a few modes compete with a periodic alternati...
Vertical forcing of a fluid layer leads to standing waves by means of a subharmonic instability. When the driving amplitude and frequency are chosen to be near the intersection ...