title: Revealing the second harmonic generation in a femtosecond laser-driven cluster-based plasma by analyzing shapes of Ar XVII spectral lines.
abstract: We present experiments dealing with a femtosecond laser-driven cluster-based plasma, where by analyzing the nonlinear phenomenon of satellites of spectral lines of Ar XVII, we revealed the nonlinear phenomenon of the generation of the second harmonic of the laser frequency. For performing this analysis we developed new results in the theory of satellites of spectral lines. From such lineshape analysis we found, in particular, that the efficiency of converting the short (40 fs) intense (3x10¹⁸ W/cm²) incident laser light into the second harmonic was 2%. This result is in the excellent agreement with the 2-Dimensional Particle-In-Cell (2D PIC) simulation that we also performed. There is also an order of magnitude agreement between the thresholds for the SHG found from the line shape analysis and from the 2D PIC simulations.
authors.forename: Eugene
authors.initials: E
authors.lastname: Oks
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Dalimier
authors.forename: Anatoly
authors.initials: A
authors.lastname: Faenov
authors.forename: Tatiana
authors.initials: T
authors.lastname: Pikuz
authors.forename: Yuji
authors.initials: Y
authors.lastname: Fukuda
authors.forename: Alexander
authors.initials: A
authors.lastname: Andreev
authors.forename: James
authors.initials: J
authors.lastname: Koga
authors.forename: Hironao
authors.initials: H
authors.lastname: Sakaki
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kotaki
authors.forename: Alexander
authors.initials: A
authors.lastname: Pirozhkov
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Igor
authors.initials: I
authors.lastname: Skobelev
authors.forename: Sergei
authors.initials: S
authors.lastname: Pikuz
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Kawachi
authors.forename: Masaki
authors.initials: M
authors.lastname: Kando
authors.forename: Kiminori
authors.initials: K
authors.lastname: Kondo
authors.forename: Alexei
authors.initials: A
authors.lastname: Zhidkov
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Kodama