Global optimization of high harmonic generation -: art. no. 193901

被引：143

作者：

Kazamias, S ^{[1
]}

Douillet, D ^{[1
]}

Weihe, F ^{[1
]}

Valentin, C ^{[1
]}

Rousse, A ^{[1
]}

Sebban, S ^{[1
]}

Grillon, G ^{[1
]}

Augé, F ^{[1
]}

Hulin, D ^{[1
]}

Balcou, P ^{[1
]}

机构：

[1] CNRS, Lab Opt Appl, ENSTA, Ecole Polytech,UMR 7639, F-91761 Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.90.193901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the relevance of the absorption limit concept in the optimization of high harmonic generation. Thanks to the first direct observation of the coherence length of the process from high-contrast Maker fringes, we unravel experimental conditions for which the harmonic dipole response is enhanced when phase matching is realized within the absorption limit, leading to record conversion efficiencies in argon. Moreover, we show that harmonic generation in guided or freely propagating geometries are equivalent in the loose focusing regime. This analysis is generalized to other advanced phase-matching schemes, thereby predicting the possibility to boost the conversion efficiencies using light noble gases.

引用

页码：193901/1 / 193901/4

页数：4

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