Resonance-enhanced high harmonic in meta ions driven by elliptically polarized laser pulses

被引：17
作者：
Lai, Yu Hang [1 ,2 ]
Rao, Konda Srinivasa [1 ]
Liang, Jingguang [1 ,2 ]
Wang, Xu [3 ]
Guo, Chunlei [4 ]
Yu, Weili [1 ,2 ]
Li, Wei [1 ,2 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, GPL, Changchun 130033, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] China Acad Engn Phys, Grad Sch, Beijing 100193, Peoples R China
[4] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
来源：
OPTICS LETTERS | 2021年 / 46卷 / 10期
基金：
中国国家自然科学基金;
关键词：
GENERATION;
D O I：
10.1364/OL.425495
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Resonance enhancement of a single order harmonic has been a main attractive feature in high-harmonic generation from laser ablated plumes of metals. Although it has been extensively investigated experimentally and theoretically, studies so far have focused only on linearly polarized driving fields. In this Letter, we study the dependence of the resonant harmonic yield in tin ions on the driving laser ellipticity. We find that the resonance leads to a less rapid decay of the harmonic yield as a function of driving ellipticity, and it is qualitatively reproduced by quantum mechanical simulations. To the best of our knowledge, our findings provide a new type of evidence for supporting previously proposed mechanisms for enhancement. (C) 2021 Optical Society of America
引用
收藏
页码：2372 / 2375
页数：4
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