High-order harmonic generation in molecular gases

被引：80

作者：

Lynga, C

LHuillier, A

Wahlstrom, CG

机构：

[1] Department of Physics, Lund Institute of Technology

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1996年 / 29卷 / 14期

关键词：

D O I：

10.1088/0953-4075/29/14/032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an experimental study of harmonic generation in molecular gases, using the fundamental (800 nm) and the second harmonic (400 nm) of a 150 fs titanium-sapphire laser at an intensity of similar to 2 x 10(14) W cm(-2). We compare the conversion efficiency and the maximum energy obtained in different species: rare gases (Ar, Xe), diatomic molecules (N-2, H-2, O-2, CO) and polyatomic molecules (SF6, N2O, CO2, CH4, C3H8). The harmonic spectra from molecular gases are very similar to those obtained in the atomic gases, with a plateau and a cutoff whose location is strongly correlated to the value of the ionization potential. The conversion efficiency is not higher than that of the rare gases.

引用

收藏

页码：3293 / 3302

页数：10

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