High harmonic generation from ultrafast pump lasers

被引：245

作者：

Schafer, KJ ^{[1
]}

Kulander, KC ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB, TAMP GRP, LIVERMORE, CA 94551 USA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.78.638

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using an ultrafast pump pulse affects the spectral and temporal characteristics of high order harmonics in an unexpected and fortuitous way. Calculations of spectra for rare gases using 10-100 fs, 800 nm pulses show that as the pump pulse length decreases the highest harmonics become correspondingly shorter while their conversion efficiencies increase dramatically. Especially significant is that we find these highest harmonics have phase characteristics that allow for the possibility of compression to subfemtosecond time scales.

引用

页码：638 / 641

页数：4

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