Abstract
Experiments have been performed at hybrid Ti:sapphire/KrF laser facility GARPUN-MTW to develop a novel technique to create a hollow-core sliding-mode plasma-filament waveguide for directed transfer of microwave radiation. Efficient multiphoton air ionization was produced by a train of picosecond 1-TW UV pulses at 248 nm wavelength, or by amplitude-modulated 100 ns pulse combining a short-pulse train with a free-running 1-GW pulse, which detached electrons off ions. Multiple filamentation of UV laser radiation in air was observed, and filamentation theory based on resonance-enhanced ionization was developed to explain the experimental results.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Vladimir Zvorykin, Andrey Ionin, Daria Mokrousova, Leonid Seleznev, Igor’ Smetanin, Elena Sunchugasheva, Nikolai Ustinovskii, and Alexey Shutov
J. Opt. Soc. Am. B 36(10) G25-G32 (2019)
S. Tzortzakis, B. Lamouroux, A. Chiron, M. Franco, B. Prade, A. Mysyrowicz, and S. D. Moustaizis
Opt. Lett. 25(17) 1270-1272 (2000)
Y. E. Geints and A. A. Zemlyanov
J. Opt. Soc. Am. B 31(4) 788-797 (2014)