title: Reinjection of transmitted laser light into laser-produced plasma for efficient laser ignition.
abstract: For improving the laser absorption efficiency in laser ignition, the transmitted laser light was returned to the laser-produced plasma by using a corner cube. In the experiments, the transmitted light was reinjected into the plasma at different times. The laser absorption efficiency was found to be substantially improved when the transmitted light was reinjected into the plasma after adequate plasma expansion. Furthermore, through visualization experiments on gas-dynamics phenomena, it was found that the reinjection of the transmitted light affected not only the laser absorption efficiency but also the gas dynamics after breakdown, and thereby the initial flame kernel development.
authors.forename: Takuma
authors.initials: T
authors.lastname: Endo
authors.forename: Yuhei
authors.initials: Y
authors.lastname: Takenaka
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Sako
authors.forename: Tomohisa
authors.initials: T
authors.lastname: Honda
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Johzaki
authors.forename: Shinichi
authors.initials: S
authors.lastname: Namba