Open AccessApplication of mid-infrared pulses for quasi-phase-matching of high-order harmonics in silver plasma
Author(s) -
R. A. Ganeev,
Anton Husakou,
Masayuki Suzuki,
Hiroto Kuroda
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.003414
Subject(s) - harmonics , plasma , optics , phase (matter) , harmonic , physics , high harmonic generation , jet (fluid) , phase matching , quasi phase matching , pulse (music) , infrared , materials science , laser , second harmonic generation , acoustics , quantum mechanics , voltage , thermodynamics , detector
We demonstrate the quasi-phase-matching of a group of harmonics generated in Ag multi-jet plasma using tunable pulses in the region of 1160 - 1540 nm and their second harmonic emission. The numerical treatment of this effect includes microscopic description of the harmonic generation, propagation of the pump pulse, and the propagation of the generated harmonics. We obtained more than 30-fold growth of harmonics at the conditions of quasi-phase-matching in the region of 35 nm using eight-jet plasma compared with the case of imperforated plasma.