title: Control of the filamentation distance and pattern in long-range atmospheric propagation.
abstract: We use the double-lens setup [10, 11] to achieve a 20-fold delay of the filamentation distance of non-chirped 120 fs pulses propagating in air, from 16m to 330m. At 330m, the collapsing pulse is sufficiently powerful to create plasma filaments. We also show that the scatter of the filaments at 330m can be significantly reduced by tilting the second lens. To the best of our knowledge, this is the longest distance reported in the Literature at which plasma filaments were created and controlled. Finally, we show that the peak power at the onset of collapse is significantly higher with the double-lens setup, compared with the standard negative chirping approach.
authors.forename: Shmuel
authors.initials: S
authors.lastname: Eisenmann
authors.forename: Einat
authors.initials: E
authors.lastname: Louzon
authors.forename: Yiftach
authors.initials: Y
authors.lastname: Katzir
authors.forename: Tala
authors.initials: T
authors.lastname: Palchan
authors.forename: Arie
authors.initials: A
authors.lastname: Zigler
authors.forename: Yonatan
authors.initials: Y
authors.lastname: Sivan
authors.forename: Gadi
authors.initials: G
authors.lastname: Fibich