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  • Received: May. 6, 2020

    Accepted: Jun. 23, 2020

    Posted: Aug. 28, 2020

    Published Online: Sep. 3, 2020

    The Author Email: Yinghui Zheng (yhzheng@siom.ac.cn), Zhinan Zeng (zhinan_zeng@mail.siom.ac.cn)

    DOI: 10.3788/COL202018.103201

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    Jiaqi Wu, Yinghui Zheng, Zhinan Zeng, Ruxin Li. High-order harmonic generation from zigzag graphene nanoribbons[J]. Chinese Optics Letters, 2020, 18(10): 103201

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Chinese Optics Letters, Vol. 18, Issue 10, 103201 (2020)

High-order harmonic generation from zigzag graphene nanoribbons

Jiaqi Wu1,2, Yinghui Zheng2,*, Zhinan Zeng2,**, and Ruxin Li1,2

Author Affiliations

  • 1School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
  • 2State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

Abstract

High-order harmonic generation originated from zigzag graphene nanoribbons (ZGNRs) induced by intense laser pulses is investigated theoretically. During the interaction between the intense mid-infrared laser and the ZGNR, we find that localized edge states mainly contribute to the generation of the low-order harmonics, while cutoff harmonics result from the other confined states. Our result shows that the edge-state effect of ZGNR with narrow width can enhance the conversion efficiency of low-order harmonics, rather than the higher-order harmonics extended to the cutoff region.

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