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Extreme nonlinear strong-field photoemission from carbon nanotubes

Author

Listed:
  • Chi Li

    (CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
    University of Chinese Academy of Sciences)

  • Ke Chen

    (CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
    University of Chinese Academy of Sciences)

  • Mengxue Guan

    (Chinese Academy of Science)

  • Xiaowei Wang

    (National University of Defense Technology)

  • Xu Zhou

    (Collaborative Innovation Center of Quantum Matter, Peking University)

  • Feng Zhai

    (Zhejiang Normal University)

  • Jiayu Dai

    (National University of Defense Technology)

  • Zhenjun Li

    (CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
    University of Chinese Academy of Sciences)

  • Zhipei Sun

    (Aalto University
    Aalto University)

  • Sheng Meng

    (Chinese Academy of Science)

  • Kaihui Liu

    (Collaborative Innovation Center of Quantum Matter, Peking University)

  • Qing Dai

    (CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
    University of Chinese Academy of Sciences)

Abstract

Strong-field photoemission produces attosecond (10−18 s) electron pulses that are synchronized to the waveform of the incident light. This nonlinear photoemission lies at the heart of current attosecond technologies. Here we report a new nonlinear photoemission behaviour—the nonlinearity in strong-field regime sharply increases (approaching 40th power-law scaling), making use of sub-nanometric carbon nanotubes and 800 nm pulses. As a result, the carrier-envelope phase sensitive photoemission current shows a greatly improved modulation depth of up to 100% (with a total modulation current up to 2 nA). The calculations reveal that the behaviour is an interplay of valence band optical-field emission with charge interaction, and the nonlinear dynamics can be tunable by changing the bandgap of carbon nanotubes. The extreme nonlinear photoemission offers a new means of producing extreme temporal-spatial resolved electron pulses, and provides a new design philosophy for attosecond electronics and photonics.

Suggested Citation

  • Chi Li & Ke Chen & Mengxue Guan & Xiaowei Wang & Xu Zhou & Feng Zhai & Jiayu Dai & Zhenjun Li & Zhipei Sun & Sheng Meng & Kaihui Liu & Qing Dai, 2019. "Extreme nonlinear strong-field photoemission from carbon nanotubes," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12797-z
    DOI: 10.1038/s41467-019-12797-z
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