title: Triggering and guiding high-voltage discharge in air by single and multiple                 femtosecond filaments.
abstract: The abilities to trigger and guide high-voltage discharge by using single and                 <em>multiple filaments</em> (MFs) are experimentally studied. It is shown that the discharge                 voltage threshold can be reduced significantly in both regimes of single and MF;                 however, the MF does not gain a larger reduction than a single filament. This                 behavior of the MF is attributed to the single discharge path rather than                 simultaneous multiple ones as one might expect during the discharge                 process.
authors.affiliation: School of Science, Changchun University of Science and Technology, Changchun 130022, China.
authors.forename: Kaimin
authors.initials: K
authors.lastname: Guo
authors.forename: Jingquan
authors.initials: J
authors.lastname: Lin
authors.forename: Zuoqiang
authors.initials: Z
authors.lastname: Hao
authors.forename: Xun
authors.initials: X
authors.lastname: Gao
authors.forename: Zhenming
authors.initials: Z
authors.lastname: Zhao
authors.forename: Changkai
authors.initials: C
authors.lastname: Sun
authors.forename: Baozeng
authors.initials: B
authors.lastname: Li