Controlling high-power autofocusing waves with periodic lattices.
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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.
author list (cited authors)
Panagiotopoulos, P., Papazoglou, D. G., Couairon, A., & Tzortzakis, S.