title: Interactive dynamics of two copropagating laser beams in underdense plasmas.
authors.affiliation: Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Science, Beijing 100080, China.
authors.forename: Hui-Chun
authors.initials: HC
authors.lastname: Wu
authors.forename: Zheng-Ming
authors.initials: ZM
authors.lastname: Sheng
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang