Nonlocal stabilization of nonlinear beams in a self-focusing atomic vapor

Details Nonlocal stabilization of nonlinear beams in a self-focusing atomic vapor Nonlocal stabilization of nonlinear beams in a self-focusing atomic vapor

2006-12-20

arxiv.org/abs/physics/0612200v1

Phys. Rev. Lett. 98, 263902 (2007)

Physics

Optics

3 figures

Scientific paper

10.1103/PhysRevLett.98.263902

We show that ballistic transport of optically excited atoms in an atomic vapor provides a nonlocal nonlinearity which stabilizes the propagation of vortex beams and higher order modes in the presence of a self-focusing nonlinearity. Numerical experiments demonstrate stable propagation of lowest and higher order vortices over a hundred diffraction lengths, before dissipation leads to decay of these structures.

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