Phase-matched sigh harmonics in a high density plasma by intensity-dependent phase

被引：0

作者：

Balcou, P ^{[1
]}

Haroutunian, R ^{[1
]}

Sebban, S ^{[1
]}

Grillon, G ^{[1
]}

Kazamias, S ^{[1
]}

Chériaux, G ^{[1
]}

Mullot, G ^{[1
]}

Dorrer, C ^{[1
]}

Le Blanc, C ^{[1
]}

Hulin, D ^{[1
]}

机构：

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

来源：

MULTIPHOTON PROCESSES | 2000年 / 525卷

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the experimental demonstration of phase-matched generation of high harmonics of orders 33 to 45 over 2 mm, in a gas cell filled with 30 torr of neon. Increasing the medium length from 1 to 4 mm is shown to enhance this specific group of harmonics by a factor of 50. To explain these results, we recall how phase-matching conditions are generalized in strong fields. By a phase-matching map formalism, we show how the spatial gradient of the intensity-dependent phase allows one to satisfy those conditions over millimeters.

引用

页码：319 / 326

页数：8

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