High-harmonic generation of attosecond pulses in the ''single-cycle'' regime

被引：560

作者：

Christov, IP ^{[1
]}

Murnane, MM ^{[1
]}

Kapteyn, HC ^{[1
]}

机构：

[1] UNIV SOFIA,DEPT PHYS,BU-1126 SOFIA,BULGARIA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.78.1251

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-harmonic generation with excitation pulses shorter than 25 fs is studied theoretically using a 3D model. For very short excitation pulses, a new regime of harmonic generation by a ''single-cycle'' 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 100 attoseconds can be emitted, with increased conversion efficiency of laser-to-harmonic radiation.

引用

页码：1251 / 1254

页数：4

共 17 条

[1] Nonadiabatic effects in high-harmonic generation with ultrashort pulses [J].