Phase-matching of high-order harmonic generation in the extreme ultraviolet region with orbital angular momentum

被引:0
|
作者
Gao, Jixing [1 ,2 ]
Yang, Chun [1 ,2 ]
Ge, Xiaochun [3 ]
Zheng, Yinghui [3 ]
Zeng, Zhinan [3 ]
Li, Ruxin [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Zhangjiang Lab, Shanghai 201203, Peoples R China
基金
中国国家自然科学基金;
关键词
BEAMS;
D O I
10.1364/OE.5048062023
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
High-order harmonics can generate vortex beams with orbital angular momentum (OAM) in the extreme ultraviolet region. However, experimental research on their phase-matching (PM) characteristics is limited. In this study, vortex high-order harmonic generation (HHG) in the extreme ultraviolet region was generated with Ar gas. Phase-matched HHG with OAM was obtained by optimizing the focus position, laser energy, and gas pressure. The dependence of the PM characteristics on these parameters was analyzed. In addition, we conducted an experimental analysis of the dimensional properties of vortex harmonics under PM conditions. This study is a contribution towards the intense vortex high-order harmonic light sources and their applications.
引用
收藏
页码:871 / 878
页数:8
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