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Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation

Author

Listed:
  • M. Clerici

    (School of Engineering, University of Glasgow)

  • N. Kinsey

    (School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University
    Present address: Department of Electrical and Computer Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, USA)

  • C. DeVault

    (Purdue University)

  • J. Kim

    (School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University)

  • E. G. Carnemolla

    (Institute of Photonics and Quantum Sciences, Heriot-Watt University, SUPA)

  • L. Caspani

    (Institute of Photonics and Quantum Sciences, Heriot-Watt University, SUPA
    Institute of Photonics, University of Strathclyde)

  • A. Shaltout

    (School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University
    Present address: Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.)

  • D. Faccio

    (Institute of Photonics and Quantum Sciences, Heriot-Watt University, SUPA)

  • V. Shalaev

    (School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University)

  • A. Boltasseva

    (School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University)

  • M. Ferrera

    (Institute of Photonics and Quantum Sciences, Heriot-Watt University, SUPA)

Abstract

Nanophotonics and metamaterials have revolutionized the way we think about optical space (ɛ,μ), enabling us to engineer the refractive index almost at will, to confine light to the smallest of the volumes, and to manipulate optical signals with extremely small footprints and energy requirements. Significant efforts are now devoted to finding suitable materials and strategies for the dynamic control of the optical properties. Transparent conductive oxides exhibit large ultrafast nonlinearities under both interband and intraband excitations. Here we show that combining these two effects in aluminium-doped zinc oxide via a two-colour laser field discloses new material functionalities. Owing to the independence of the two nonlinearities, the ultrafast temporal dynamics of the material permittivity can be designed by acting on the amplitude and delay of the two fields. We demonstrate the potential applications of this novel degree of freedom by dynamically addressing the modulation bandwidth and optical spectral tuning of a probe optical pulse.

Suggested Citation

  • M. Clerici & N. Kinsey & C. DeVault & J. Kim & E. G. Carnemolla & L. Caspani & A. Shaltout & D. Faccio & V. Shalaev & A. Boltasseva & M. Ferrera, 2017. "Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15829
    DOI: 10.1038/ncomms15829
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    Cited by:

    1. Geng-Bo Wu & Jun Yan Dai & Kam Man Shum & Ka Fai Chan & Qiang Cheng & Tie Jun Cui & Chi Hou Chan, 2023. "A universal metasurface antenna to manipulate all fundamental characteristics of electromagnetic waves," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    2. Wallace Jaffray & Federico Belli & Enrico G. Carnemolla & Catalina Dobas & Mark Mackenzie & John Travers & Ajoy K. Kar & Matteo Clerici & Clayton DeVault & Vladimir M. Shalaev & Alexandra Boltasseva &, 2022. "Near-zero-index ultra-fast pulse characterization," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Soham Saha & Benjamin T. Diroll & Mustafa Goksu Ozlu & Sarah N. Chowdhury & Samuel Peana & Zhaxylyk Kudyshev & Richard D. Schaller & Zubin Jacob & Vladimir M. Shalaev & Alexander V. Kildishev & Alexan, 2023. "Engineering the temporal dynamics of all-optical switching with fast and slow materials," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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