Nonadiabatic effects in high-harmonic generation with ultrashort pulses

被引：117

作者：

Christov, IP ^{[1
]}

Zhou, J ^{[1
]}

Peatross, J ^{[1
]}

Rundquist, A ^{[1
]}

Murnane, MM ^{[1
]}

Kapteyn, HC ^{[1
]}

机构：

[1] UNIV MICHIGAN,CTR ULTRAFAST OPT SCI,ANN ARBOR,MI 48109

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.77.1743

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-harmonic generation using ultrashort laser pulses with pulse durations 25 to 200 fs is studied theoretically and experimentally. We observe that the harmonic spectrum of argon taken with 25 fs laser pulses contains harmonics up to 20 orders higher than for 100 fs laser pulses with the same intensity. We show that this increase in harmonics is because the atom survives to higher laser intensities, due in part to the nonadiabatic response of the atomic dipole to the fast rise time of our pulse.

引用

页码：1743 / 1746

页数：4

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