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Controlling the orbital angular momentum of high harmonic vortices

Author

Listed:
  • Fanqi Kong

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Chunmei Zhang

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Frédéric Bouchard

    (University of Ottawa)

  • Zhengyan Li

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Graham G. Brown

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Dong Hyuk Ko

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • T. J. Hammond

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Ladan Arissian

    (Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

  • Robert W. Boyd

    (University of Ottawa
    The Institute of Optics, University of Rochester)

  • Ebrahim Karimi

    (University of Ottawa)

  • P. B. Corkum

    (University of Ottawa
    Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)

Abstract

Optical vortices, which carry orbital angular momentum (OAM), can be flexibly produced and measured with infrared and visible light. Their application is an important research topic for super-resolution imaging, optical communications and quantum optics. However, only a few methods can produce OAM beams in the extreme ultraviolet (XUV) or X-ray, and controlling the OAM on these beams remains challenging. Here we apply wave mixing to a tabletop high-harmonic source, as proposed in our previous work, and control the topological charge (OAM value) of XUV beams. Our technique enables us to produce first-order OAM beams with the smallest possible central intensity null at XUV wavelengths. This work opens a route for carrier-injected laser machining and lithography, which may reach nanometre or even angstrom resolution. Such a light source is also ideal for space communications, both in the classical and quantum regimes.

Suggested Citation

  • Fanqi Kong & Chunmei Zhang & Frédéric Bouchard & Zhengyan Li & Graham G. Brown & Dong Hyuk Ko & T. J. Hammond & Ladan Arissian & Robert W. Boyd & Ebrahim Karimi & P. B. Corkum, 2017. "Controlling the orbital angular momentum of high harmonic vortices," Nature Communications, Nature, vol. 8(1), pages 1-6, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14970
    DOI: 10.1038/ncomms14970
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    Cited by:

    1. Raoul Trines & Holger Schmitz & Martin King & Paul McKenna & Robert Bingham, 2024. "Laser harmonic generation with independent control of frequency and orbital angular momentum," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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