作者: Liqiang Feng , Hang Liu
DOI: 10.1063/1.4905861
关键词: Harmonic 、 Extreme ultraviolet 、 Attosecond 、 Laser 、 Physics 、 Linear polarization 、 Atomic physics 、 High harmonic generation 、 Cluster (physics) 、 Plasma diagnostics
摘要: A promising method to generate the attosecond extreme ultraviolet (XUV) sources has been theoretically investigated emerging from two-dimensional Ar+ cluster driven by spatially inhomogeneous field. The results show that with introduction of model, not only harmonic cutoffs are enhanced, but also yields reinforced. Furthermore, properly moderating inhomogeneity as well laser parameters field, cutoff can be further extended. As a result, three almost linearly polarized XUV pulses durations 40 as, 42 as, and 45 as obtained.