We studied the high-order harmonic generation (HHG) from 2D solid materials in circularly and bichromatic circularly polarized laser fields numerically by simulating the dynamics of single-active-electron processes in 2D periodic potentials. Contrary to the absence of HHG in the atomic case, circular HHGs below the bandgap with different helicities are produced from intraband transitions in solids with C4 symmetry driven by circularly polarized lasers. Harmonics above the bandgap are elliptically polarized due to the interband transitions. High-order elliptically polarized harmonics can be generated efficiently by both co-rotating and counter-rotating bicircular mid-infrared lasers. The cutoff energy, ellipticity, phase, and intensity of the harmonics can be tuned by the control of the relative phase difference between the 1ω and 2ω fields in bicircularly polarized lasers, which can be utilized as an ultrafast optical tool to image the structure of solids.
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21 October 2018
Research Article|
October 18 2018
High-order harmonic generation from 2D periodic potentials in circularly and bichromatic circularly polarized laser fields
Guang-Rui Jia;
Guang-Rui Jia
1
College of Physics and Materials Science, Henan Normal University
, Xinxiang 453007, China
2
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences
, Wuhan 430071, China
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Xin-Qiang Wang;
Xin-Qiang Wang
2
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences
, Wuhan 430071, China
3
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
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Tao-Yuan Du;
Tao-Yuan Du
2
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences
, Wuhan 430071, China
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Xiao-Huan Huang;
Xiao-Huan Huang
a)
4
Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University
, Huangshi 435002, China
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Xue-Bin Bian
Xue-Bin Bian
b)
1
College of Physics and Materials Science, Henan Normal University
, Xinxiang 453007, China
2
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences
, Wuhan 430071, China
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a)
Electronic mail: [email protected]
b)
Electronic mail: [email protected]
J. Chem. Phys. 149, 154304 (2018)
Article history
Received:
August 10 2018
Accepted:
October 02 2018
Citation
Guang-Rui Jia, Xin-Qiang Wang, Tao-Yuan Du, Xiao-Huan Huang, Xue-Bin Bian; High-order harmonic generation from 2D periodic potentials in circularly and bichromatic circularly polarized laser fields. J. Chem. Phys. 21 October 2018; 149 (15): 154304. https://doi.org/10.1063/1.5051598
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