Spatial mode control of high-order harmonics

被引：21

作者：

Mercer, I

Mevel, E

Zerne, R

LHuillier, A

Antoine, P

Wahlstrom, CG

机构：

[1] LUND INST TECHNOL,DEPT PHYS,S-22100 LUND,SWEDEN

[2] CENS,CEA,DSM,DRECAM,SPAM,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.77.1731

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that the spatial mode of high-order harmonics can be continuously controlled. The control is achieved by spatially modulating the degree of elliptical polarization of the fundamental field using birefringent optics. A highly sensitive relationship between the efficiency of harmonic generation and the degree of laser elliptical polarization leads to atoms emitting harmonics mainly in regions of linear polarization. The harmonics are emitted as annular beams whose angles of divergence can be continuously varied.

引用

页码：1731 / 1734

页数：4

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