Pushkarev, D.; Mitina, E.; Shipilo, D.; Panov, N.; Uryupina, D.; Ushakov, A.; Volkov, R.; Karabutov, A.; Babushkin, I.; Morgner, Uwe; Kosareva, O.; Savel’ev, A.
(London : IOP, 2019)
We traced experimentally transition from a single air filament to the superfilament under action of powerful loosely focused (NA ~ 0.0021) femtosecond beam. Two regimes were exploited with multifilament formation by ...