Self-guiding light in layered nonlinear media.
We study the propagation of intense optical beams in layered Kerr media. With appropriate shapes, beams with a power close to the self-focusing threshold are shown to propagate over long distances as quasi-stationary waveguides in cubic media supporting a periodic nonlinear refractive index.
L
L
Bergã
V K
VK
Mezentsev
J J
JJ
Rasmussen
P L
PL
Christiansen
Y B
YB
Gaididei