Elliptically Polarized High-Order Harmonic Emission from Molecules in Linearly Polarized Laser Fields

被引：220

作者：

Zhou, Xibin ^{[1
,2
]}

Lock, Robynne ^{[1
,2
]}

Wagner, Nick ^{[1
,2
]}

Li, Wen ^{[1
,2
]}

Kapteyn, Henry C. ^{[1
,2
]}

Murnane, Margaret M. ^{[1
,2
]}

机构：

[1] Univ Colorado, JILA, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 07期

关键词：

ALIGNED MOLECULES; GENERATION; DYNAMICS; ELECTRONS;

D O I：

10.1103/PhysRevLett.102.073902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We perform an accurate polarimetry measurement of high-order harmonic emission from aligned molecules. We find that harmonic emission from N-2 can be strongly elliptically polarized even when driven by linearly polarized laser fields. These data have broad implications for understanding molecules in strong fields because they cannot be explained by simple theories based on the strong field approximation and single active electron models. Finally, this work also shows that it is possible to engineer the polarization properties of harmonic emission by carefully preparing a molecular medium.

引用

页数：4

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