Mutual Enhancement of Brunel Harmonics

被引:9
作者
Kostin, V. A. [1 ,2 ]
Vvedenskii, N. V. [1 ,2 ]
机构
[1] Inst Appl Phys, Russian Acad Sciences, Nizhnii Novgorod RU-603950, Novgorod, Russia
[2] Lobachevsky State Univ Nizhny Novgorod, Nizhnii Novgorod RU-603950, Novgorod, Russia
基金
俄罗斯科学基金会;
关键词
GENERATION; IONIZATION;
D O I
10.1134/S0021364019190081
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A mechanism of a significant increase in the yield of Brunel harmonics, which are the lowest odd harmonics generated in a plasma in the process of tunnel ionization of atoms and molecules by an intense laser pulse, has been proposed and analyzed. This mechanism is based on the mutual enhancement of harmonics at the parametric interaction with the field at the fundamental frequency caused by the degenerate ionization-induced multiwave mixing. The results of analytical and numerical calculations show that this can increase the intensities of the generated harmonics by several orders of magnitude.
引用
收藏
页码:457 / 463
页数:7
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