title: Multiple filamentation generated by focusing femtosecond laser with axicon.
abstract: Multiple filamentation has been observed when focusing a femtosecond laser pulse into a methanol solution with an axicon. It is found that multiple long filaments are located on the central spot and ring structures of the quasi-Bessel beam created by the axicon. Since the quasi-Bessel profile is determined by the axicon properties, the axicon has been suggested as a simple optics to control multiple filaments.
authors.affiliation: Institute of Modern Optics, Nankai University, Key Laboratory of Optical Information Science and Technology, Ministry of Education, Tianjin, 300071 China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Sun
authors.forename: Hui
authors.initials: H
authors.lastname: Gao
authors.forename: Bin
authors.initials: B
authors.lastname: Zeng
authors.forename: Shengqi
authors.initials: S
authors.lastname: Xu
authors.forename: Weiwei
authors.initials: W
authors.lastname: Liu
authors.forename: Ya
authors.initials: Y
authors.lastname: Cheng
authors.forename: Zhizhan
authors.initials: Z
authors.lastname: Xu
authors.forename: Guoguang
authors.initials: G
authors.lastname: Mu