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Near-zero-index ultra-fast pulse characterization

Author

Listed:
  • Wallace Jaffray

    (Heriot-Watt University, SUPA)

  • Federico Belli

    (Heriot-Watt University, SUPA)

  • Enrico G. Carnemolla

    (Heriot-Watt University, SUPA)

  • Catalina Dobas

    (Heriot-Watt University, SUPA)

  • Mark Mackenzie

    (Heriot-Watt University, SUPA)

  • John Travers

    (Heriot-Watt University, SUPA)

  • Ajoy K. Kar

    (Heriot-Watt University, SUPA)

  • Matteo Clerici

    (University of Glasgow)

  • Clayton DeVault

    (Harvard University)

  • Vladimir M. Shalaev

    (Purdue University)

  • Alexandra Boltasseva

    (Purdue University)

  • Marcello Ferrera

    (Heriot-Watt University, SUPA)

Abstract

Transparent conducting oxides exhibit giant optical nonlinearities in the near-infrared window where their linear index approaches zero. Despite the magnitude and speed of these nonlinearities, a “killer” optical application for these compounds has yet to be found. Because of the absorptive nature of the typically used intraband transitions, out-of-plane configurations with short optical paths should be considered. In this direction, we propose an alternative frequency-resolved optical gating scheme for the characterization of ultra-fast optical pulses that exploits near-zero-index aluminium zinc oxide thin films. Besides the technological advantages in terms of manufacturability and cost, our system outperforms commercial modules in key metrics, such as operational bandwidth, sensitivity, and robustness. The performance enhancement comes with the additional benefit of simultaneous self-phase-matched second and third harmonic generation. Because of the fundamental importance of novel methodologies to characterise ultra-fast events, our solution could be of fundamental use for numerous research labs and industries.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31151-4
    DOI: 10.1038/s41467-022-31151-4
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    References listed on IDEAS

    as
    1. M. Clerici & N. Kinsey & C. DeVault & J. Kim & E. G. Carnemolla & L. Caspani & A. Shaltout & D. Faccio & V. Shalaev & A. Boltasseva & M. Ferrera, 2017. "Correction: Corrigendum: Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation," Nature Communications, Nature, vol. 8(1), pages 1-1, December.
    2. Yiyu Zhou & M. Zahirul Alam & Mohammad Karimi & Jeremy Upham & Orad Reshef & Cong Liu & Alan E. Willner & Robert W. Boyd, 2020. "Broadband frequency translation through time refraction in an epsilon-near-zero material," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    3. Justus Bohn & Ting Shan Luk & Craig Tollerton & Sam W. Hutchings & Igal Brener & Simon Horsley & William L. Barnes & Euan Hendry, 2021. "Author Correction: All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide," Nature Communications, Nature, vol. 12(1), pages 1-1, December.
    4. Justus Bohn & Ting Shan Luk & Craig Tollerton & Sam W. Hutchings & Igal Brener & Simon Horsley & William L. Barnes & Euan Hendry, 2021. "All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide," Nature Communications, Nature, vol. 12(1), pages 1-6, December.
    5. 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.
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