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Record Low Threshold Current Density in Quantum Dot Microdisk Laser

  • LASERS AND OPTOELECTRONIC DEVICES
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Abstract

We demonstrate a record low threshold current density of 250 A/cm2 in a quantum dot microdisk laser with a 31-μm diameter operating at room temperature in continuous wave regime without temperature stabilization. This low threshold current density is very close to the transparency current density estimated in broad-area edge-emitting lasers made of the same epitaxial wafer.

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Authors and Affiliations

  1. Alferov Saint Petersburg National Research Academic University, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    E. I. Moiseev, N. V. Kryzhanovskaya, F. I. Zubov, M. V. Maximov & A. E. Zhukov

  2. Peter the Great St Petersburg Polytechnic University, 195251, St. Petersburg, Russia

    M. S. Mikhailovskii, A. N. Abramov & A. E. Zhukov

  3. Ioffe Institute, 194021, St. Petersburg, Russia

    M. M. Kulagina & Yu. A. Guseva

  4. Innolume GmbH, Dortmund, Germany

    D. A. Livshits

Authors
  1. E. I. Moiseev
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  2. N. V. Kryzhanovskaya
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  3. F. I. Zubov
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  4. M. S. Mikhailovskii
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  5. A. N. Abramov
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  6. M. V. Maximov
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  7. M. M. Kulagina
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  8. Yu. A. Guseva
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  9. D. A. Livshits
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  10. A. E. Zhukov
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Corresponding author

Correspondence to A. E. Zhukov.

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FUNDING

The work was supported by the Russian Science Foundation (project 19-72-30010).

CONFLICT OF INTEREST

The authors declare that they have no conflict of interest.

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Moiseev, E.I., Kryzhanovskaya, N.V., Zubov, F.I. et al. Record Low Threshold Current Density in Quantum Dot Microdisk Laser. Semiconductors 53, 1888–1890 (2019). https://doi.org/10.1134/S106378261914015X

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  • DOI: https://doi.org/10.1134/S106378261914015X

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