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Spectral phase control of interfering chirped pulses for high-energy narrowband terahertz generation

Author

Listed:
  • Spencer W. Jolly

    (Center for Free-Electron Laser Science and Department of Physics Universität Hamburg
    Institute of Physics of the ASCR, ELI-Beamlines project)

  • Nicholas H. Matlis

    (Center for Free-Electron Laser Science and Deutsches Elektronen Synchrotron (DESY))

  • Frederike Ahr

    (Center for Free-Electron Laser Science and Deutsches Elektronen Synchrotron (DESY))

  • Vincent Leroux

    (Center for Free-Electron Laser Science and Department of Physics Universität Hamburg
    Institute of Physics of the ASCR, ELI-Beamlines project)

  • Timo Eichner

    (Center for Free-Electron Laser Science and Department of Physics Universität Hamburg)

  • Anne-Laure Calendron

    (Center for Free-Electron Laser Science and Deutsches Elektronen Synchrotron (DESY)
    Department of Physics and The Hamburg Centre for Ultrafast Imaging, Universität Hamburg)

  • Hideki Ishizuki

    (Division of Research Innovation and Collaboration, Institute for Molecular Science
    Innovative Light Sources Division, RIKEN SPring-8 Center)

  • Takunori Taira

    (Division of Research Innovation and Collaboration, Institute for Molecular Science
    Innovative Light Sources Division, RIKEN SPring-8 Center)

  • Franz X. Kärtner

    (Center for Free-Electron Laser Science and Deutsches Elektronen Synchrotron (DESY)
    Department of Physics and The Hamburg Centre for Ultrafast Imaging, Universität Hamburg)

  • Andreas R. Maier

    (Center for Free-Electron Laser Science and Department of Physics Universität Hamburg)

Abstract

Highly-efficient optical generation of narrowband terahertz radiation enables unexplored technologies and sciences from compact electron acceleration to charge manipulation in solids. State-of-the-art conversion efficiencies are currently achieved using difference-frequency generation driven by temporal beating of chirped pulses but remain, however, far lower than desired or predicted. Here we show that high-order spectral phase fundamentally limits the efficiency of narrowband difference-frequency generation using chirped-pulse beating and resolve this limitation by introducing a novel technique based on tuning the relative spectral phase of the pulses. For optical terahertz generation, we demonstrate a 13-fold enhancement in conversion efficiency for 1%-bandwidth, 0.361 THz pulses, yielding a record energy of 0.6 mJ and exceeding previous optically-generated energies by over an order of magnitude. Our results prove the feasibility of millijoule-scale applications like terahertz-based electron accelerators and light sources and solve the long-standing problem of temporal irregularities in the pulse trains generated by interfering chirped pulses.

Suggested Citation

  • Spencer W. Jolly & Nicholas H. Matlis & Frederike Ahr & Vincent Leroux & Timo Eichner & Anne-Laure Calendron & Hideki Ishizuki & Takunori Taira & Franz X. Kärtner & Andreas R. Maier, 2019. "Spectral phase control of interfering chirped pulses for high-energy narrowband terahertz generation," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10657-4
    DOI: 10.1038/s41467-019-10657-4
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    Cited by:

    1. Alexa Herter & Amirhassan Shams-Ansari & Francesca Fabiana Settembrini & Hana K. Warner & Jérôme Faist & Marko Lončar & Ileana-Cristina Benea-Chelmus, 2023. "Terahertz waveform synthesis in integrated thin-film lithium niobate platform," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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