Collapse and stability of necklace beams in Kerr media.

Phys Rev Lett 2007 Sep 28;99(13):133902. Epub 2007 Sep 28.

School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.

We investigate the spatial dynamics of optical necklace beams in Kerr media. For powers corresponding to less than the critical power for self-focusing per bead, we experimentally confirm the confinement of these necklace beams as proposed in [Phys. Rev. Lett. 81, 4851 (1998)10.1103/PhysRevLett.81.4851]. At higher powers, we observe a transition from collective necklace behavior to one in which the beads of the necklace collapse independently. We observe that, below the transition power, the perturbed necklace still behaves in a collective manner with coupling between individual beads but that, at higher powers, it undergoes a similar transition to a decoupled state of the necklace.

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http://dx.doi.org/10.1103/PhysRevLett.99.133902DOI Listing
September 2007
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