High-Harmonic Generation of Attosecond Pulses in the {open_quotes}Single-Cycle{close_quotes} Regime
Journal Article
·
· Physical Review Letters
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099 (United States)
High-harmonic generation with excitation pulses shorter than 25fs is studied theoretically using a 3D model. For very short excitation pulses, a new regime of harmonic generation by a {open_quotes}single-cycle{close_quotes} of the driver pulse can be reached. In this regime, the temporal coherence of the adjacent harmonic orders is dramatically improved compared with longer excitation pulses, even though the discrete harmonic structure in the emission disappears. X-ray pulses as short as 100attoseconds can be emitted, with increased conversion efficiency of laser-to-harmonic radiation. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 467407
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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