title: Controlling high-power autofocusing waves with periodic lattices.
abstract: We show numerically that by using radial symmetric lattices, the focal spot characteristics and filament peak intensity of high-power autofocusing waves can be controlled. The lattice induced diffraction is able to isolate the main on-axis peak and control the focus position. In addition, at higher power the lattice can control and stabilize the peak intensity of the filament over an extended distance.
authors.forename: P
authors.initials: P
authors.lastname: Panagiotopoulos
authors.forename: D G
authors.initials: DG
authors.lastname: Papazoglou
authors.forename: A
authors.initials: A
authors.lastname: Couairon
authors.forename: S
authors.initials: S
authors.lastname: Tzortzakis