首页|Modulation of High-Order Harmonic Generation from a Monolayer ZnO by Co-rotating Two-Color Circularly Polarized Laser Fields

Modulation of High-Order Harmonic Generation from a Monolayer ZnO by Co-rotating Two-Color Circularly Polarized Laser Fields

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By numerically solving the two-dimensional semiconductor Bloch equation,we study the high-order harmonic emission of a monolayer ZnO under the driving of co-rotating two-color circularly polarized laser pulses.By chang-ing the relative phase between the fundamental frequency field and the second one,it is found that the harmonic intensity in the platform region can be significantly modulated.In the higher order,the harmonic intensity can be increased by about one order of magnitude.Through time-frequency analysis,it is demonstrated that the emission trajectory of monolayer ZnO can be controlled by the relative phase,and the harmonic enhancement is caused by the second quantum trajectory with the higher emission probability.In addition,near-circularly polarized harmonics can be generated in the co-rotating two-color circularly polarized fields.With the change of the relative phase,the harmonics in the platform region can be altered from left-handed near-circularly polariza-tion to right-handed one.Our results can obtain high-intensity harmonic radiation with an adjustable ellipticity,which provides an opportunity for syntheses of circularly polarized attosecond pulses.

乔月、陈家祺、周书山、陈基根、蒋士成、杨玉军

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School of Materials Science and Engineering,Taizhou University,Jiaojiang 318000,China

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

Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy(Jilin University),Changchun 130012,China

School of Physics and Electronic Technology,Liaoning Normal University,Dalian 116029,China

State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China

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浙江省自然科学基金浙江省自然科学基金国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金Jilin Provincial Research Foundation for Basic Research,ChinaFoundation of Education Department of Liaoning Province,ChinaNational College Students Innovation and Entrepreneurship Training ProgramHigh Performance Computing Center of Jilin University for supercomputer time and the high performance computing cluster Tige

Y23A040001LY21F0500012019YFA030770012074145117742191197501212374029123043781220421420220101003JCLJKMZ20221435202310350062

2024

10.1088/0256-307X/41/1/014205

中国物理快报(英文版)
中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDEI
影响因子：0.515
ISSN：0256-307X
年,卷(期)：2024.41(1)
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