Open AccessDouble optical gating of high order harmonics from plasma surfaces
Author(s) -
Rachel Elizabeth Smith,
Elgiva White,
Paul M Gilmore,
B. Dromey,
M. Yeung
Publication year - 2021
Publication title -
new journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.584
H-Index - 190
ISSN - 1367-2630
DOI - 10.1088/1367-2630/ac2006
Subject(s) - physics , attosecond , harmonics , high harmonic generation , laser , polarization (electrochemistry) , gating , optics , plasma , pulse (music) , brightness , ultrashort pulse , voltage , quantum mechanics , physiology , chemistry , detector , biology
Laser driven high harmonic generation from relativistically oscillating plasma surfaces is a promising route to isolated attosecond pulses with high peak brightness. Here we investigate a double optical gating scheme to restrict the emission to only a single, intense, attosecond pulse even with a multi-cycle driving laser. This scheme, which uses a second harmonic field, combined with a pair of counter-rotating circularly polarized laser pulses, leads to more efficient attosecond pulse generation with improved temporal isolation when compared to a single colour polarization gating scheme.