Generation of nonadiabatic blueshift of high harmonics in an intense femtosecond laser field

被引：112

作者：

Shin, HJ ^{[1
]}

Lee, DG

Cha, YH

Hong, KH

Nam, CH

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Ctr Electroopt, Taejon 305701, South Korea

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.83.2544

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By applying intense 30-fs Ti:sapphire laser pulses to Ar gas well above the saturation intensity for optical-field ionization, a strong blueshift of high harmonics 2 times as large as the laser frequency was generated. A semiclassical calculation showed that the observed large blueshift resulted from a rapidly increasing electric field, existing much earlier in time than the peak of the laser pulse, i.e., a nonadiabatic effect.

引用

页码：2544 / 2547

页数：4

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