High-order harmonic generation from diatomic molecules with large internuclear distance: The effect of two-center interference

被引：13

作者：

Chen, Y. J. ^{[1
,2
]}

Liu, J. ^{[1
,3
]}

机构：

[1] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China

[2] China Acad Engn Phys, Grad Sch, Beijing 100088, Peoples R China

[3] Peking Univ, Ctr Appl Phys & Technol, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW A | 2008年 / 77卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.77.013410

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the high-order harmonic generation (HHG) from diatomic molecules with large internuclear distance using a strong-field approximation model. We find that the hump and dip structure emerges in the plateau region of the harmonic spectrum and the location of this striking structure is sensitive to the laser intensity. Our model analysis reveals that two-center interference as well as the interference between different recombination electron trajectories is responsible for the unusual enhanced or suppressed harmonic yield at a certain order, and these interference effects are greatly influenced by laser parameters such as intensity.

引用

页数：5

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