title: Generation of high-density electrons based on plasma grating induced Bragg diffraction in air.
abstract: Efficient nonlinear Bragg diffraction was observed as an intense infrared femtosecond pulse was focused on a plasma grating induced by interference between two ultraviolet femtosecond laser pulses in air. The preformed electrons inside the plasma grating were accelerated by subsequent intense infrared laser pulses, inducing further collisional ionization and significantly enhancing the local electron density.
authors.affiliation: State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
authors.forename: Liping
authors.initials: L
authors.lastname: Shi
authors.forename: Wenxue
authors.initials: W
authors.lastname: Li
authors.forename: Yongdong
authors.initials: Y
authors.lastname: Wang
authors.forename: Xin
authors.initials: X
authors.lastname: Lu
authors.forename: Liang'en
authors.initials: L
authors.lastname: Ding
authors.forename: Heping
authors.initials: H
authors.lastname: Zeng