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.
© 2014 Optical Society of America
Original Manuscript: June 19, 2014
Revised Manuscript: July 19, 2014
Manuscript Accepted: July 20, 2014
Published: August 15, 2014
P. Panagiotopoulos, D. G. Papazoglou, A. Couairon, and S. Tzortzakis, "Controlling high-power autofocusing waves with periodic lattices," Opt. Lett. 39, 4958-4961 (2014)