期刊
NEW JOURNAL OF PHYSICS
卷 23, 期 9, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1367-2630/ac2006
关键词
high harmonic generation; laser-plasma interaction; attosecond
资金
- EPSRC [EP/P010059/1]
- EPSRC [EP/P010059/1] Funding Source: UKRI
The research found that a double optical gating scheme using a second harmonic field and counter-rotating circularly polarized laser pulses can generate attosecond pulses more efficiently and improve temporal isolation compared to a single color polarization gating scheme.
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.
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