首页|Elliptically polarized high-order harmonic generation of Ar atom in an intense laser field

Elliptically polarized high-order harmonic generation of Ar atom in an intense laser field

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High-order harmonic generation(HHG)of Ar atom in an elliptically polarized intense laser field is experimentally investigated in this work.Interestingly,the anomalous ellipticity dependence on the laser ellipticity(ε)in the lower-order harmonics is observed,specifically in the 13rd-order,which displays a maximal harmonic intensity at ε ≈ 0.1,rather than at ε=0 as expected.This contradicts the general trend of harmonic yield,which typically decreases with the increase of laser ellipticity.In this study,we attribute this phenomenon to the disruption of the symmetry of the wave function by the Coulomb effect,leading to the generation of a harmonic with high ellipticity.This finding provides valuable insights into the behavior of elliptically polarized harmonics and opens up a potential way for exploring new applications in ultrafast spectroscopy and light-matter interactions.

high-order harmonic generationCoulomb effectelliptically polarized intense laser field

胡杰、王一琛、景秋霜、姜威、王革文、赵逸文、肖礴、梁红静、马日

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Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,China

College of Science,Jilin Institute of Chemical Technology,Jilin 132022,China

国家自然科学基金国家自然科学基金国家自然科学基金National Key Program for Science and Technology Research and Development of China吉林省自然科学基金吉林省自然科学基金Scientific Research Foundation of the Education Department of Jilin Province,China

9225030611974137123043022019YFA0307700YDZJ202101ZYTS157YDZJ202201ZYTS314JJKH20230283KJ

2024

10.1088/1674-1056/ad2604

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
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