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Ultrafast-nonlinear ultraviolet pulse modulation in an AlInGaN polariton waveguide operating up to room temperature

Author

Listed:
  • D. M. Paola

    (University of Sheffield)

  • P. M. Walker

    (University of Sheffield)

  • R. P. A. Emmanuele

    (University of Sheffield)

  • A. V. Yulin

    (ITMO University)

  • J. Ciers

    (École Polytechnique Fédérale de Lausanne (EPFL)
    Chalmers University of Technology)

  • Z. Zaidi

    (University of Sheffield)

  • J.-F. Carlin

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • N. Grandjean

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • I. Shelykh

    (ITMO University
    University of Iceland)

  • M. S. Skolnick

    (University of Sheffield
    ITMO University)

  • R. Butté

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • D. N. Krizhanovskii

    (University of Sheffield
    ITMO University)

Abstract

Ultrafast nonlinear photonics enables a host of applications in advanced on-chip spectroscopy and information processing. These rely on a strong intensity dependent (nonlinear) refractive index capable of modulating optical pulses on sub-picosecond timescales and on length scales suitable for integrated photonics. Currently there is no platform that can provide this for the UV spectral range where broadband spectra generated by nonlinear modulation can pave the way to new on-chip ultrafast (bio-) chemical spectroscopy devices. We demonstrate the giant nonlinearity of UV hybrid light-matter states (exciton-polaritons) up to room temperature in an AlInGaN waveguide. We experimentally measure ultrafast nonlinear spectral broadening of UV pulses in a compact 100 μm long device and deduce a nonlinearity 1000 times that in common UV nonlinear materials and comparable to non-UV polariton devices. Our demonstration promises to underpin a new generation of integrated UV nonlinear light sources for advanced spectroscopy and measurement.

Suggested Citation

  • D. M. Paola & P. M. Walker & R. P. A. Emmanuele & A. V. Yulin & J. Ciers & Z. Zaidi & J.-F. Carlin & N. Grandjean & I. Shelykh & M. S. Skolnick & R. Butté & D. N. Krizhanovskii, 2021. "Ultrafast-nonlinear ultraviolet pulse modulation in an AlInGaN polariton waveguide operating up to room temperature," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23635-6
    DOI: 10.1038/s41467-021-23635-6
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    Cited by:

    1. Seong Won Lee & Jong Seok Lee & Woo Hun Choi & Daegwang Choi & Su-Hyun Gong, 2024. "Ultra-compact exciton polariton modulator based on van der Waals semiconductors," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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