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A quantum optical study of thresholdless lasing features in high-β nitride nanobeam cavities

Author

Listed:
  • Stefan T. Jagsch

    (Technische Universität Berlin)

  • Noelia Vico Triviño

    (École Polytechnique Fédérale de Lausanne)

  • Frederik Lohof

    (University of Bremen)

  • Gordon Callsen

    (Technische Universität Berlin
    École Polytechnique Fédérale de Lausanne)

  • Stefan Kalinowski

    (Technische Universität Berlin)

  • Ian M. Rousseau

    (École Polytechnique Fédérale de Lausanne)

  • Roy Barzel

    (University of Bremen)

  • Jean-François Carlin

    (École Polytechnique Fédérale de Lausanne)

  • Frank Jahnke

    (University of Bremen)

  • Raphaël Butté

    (École Polytechnique Fédérale de Lausanne)

  • Christopher Gies

    (University of Bremen)

  • Axel Hoffmann

    (Technische Universität Berlin)

  • Nicolas Grandjean

    (École Polytechnique Fédérale de Lausanne)

  • Stephan Reitzenstein

    (Technische Universität Berlin)

Abstract

Exploring the limits of spontaneous emission coupling is not only one of the central goals in the development of nanolasers, it is also highly relevant regarding future large-scale photonic integration requiring energy-efficient coherent light sources with a small footprint. Recent studies in this field have triggered a vivid debate on how to prove and interpret lasing in the high-β regime. We investigate close-to-ideal spontaneous emission coupling in GaN nanobeam lasers grown on silicon. Such nanobeam cavities allow for efficient funneling of spontaneous emission from the quantum well gain material into the laser mode. By performing a comprehensive optical and quantum-optical characterization, supported by microscopic modeling of the nanolasers, we identify high-β lasing at room temperature and show a lasing transition in the absence of a threshold nonlinearity at 156 K. This peculiar characteristic is explained in terms of a temperature and excitation power-dependent interplay between zero-dimensional and two-dimensional gain contributions.

Suggested Citation

  • Stefan T. Jagsch & Noelia Vico Triviño & Frederik Lohof & Gordon Callsen & Stefan Kalinowski & Ian M. Rousseau & Roy Barzel & Jean-François Carlin & Frank Jahnke & Raphaël Butté & Christopher Gies & A, 2018. "A quantum optical study of thresholdless lasing features in high-β nitride nanobeam cavities," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-02999-2
    DOI: 10.1038/s41467-018-02999-2
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    Cited by:

    1. Lippi, G.L. & Wang, T. & Puccioni, G.P., 2022. "“Phase transitions” in small systems: Why standard threshold definitions fail for nanolasers," Chaos, Solitons & Fractals, Elsevier, vol. 157(C).

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