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Photon-phonon collaboratively pumped laser

Author

Listed:
  • Yu Fu

    (Shandong University)

  • Fei Liang

    (Shandong University)

  • Cheng He

    (Nanjing University)

  • Haohai Yu

    (Shandong University)

  • Huaijin Zhang

    (Shandong University)

  • Yan-Feng Chen

    (Nanjing University)

Abstract

In 1917, Einstein considered stimulated photon emission of electron radiation, offering the theoretical foundation for laser, technically achieved in 1960. However, thermal phonons along with heat creation of non-radiative transition, are ineffective, even playing a detrimental role in lasing efficiency. Here, we realize a photon-phonon collaboratively pumped laser enhanced by heat in a counterintuitive way. We observe a laser transition from phonon-free 1064 nm lasing to phonon-pumped 1176 nm lasing in Nd:YVO4 crystal, associated with the phonon-pumped population inversion under high temperatures. Moreover, an additional temperature threshold (Tth) appears besides the photon-pump power threshold (Pth), and a two-dimensional lasing phase diagram is verified with a general relation ruled by Pth = C/Tth (constant C upon loss for a given crystal), similar to Curie’s Law. Our strategy will promote the study of laser physics via dimension extension, searching for highly efficient and low-threshold laser devices via this temperature degree of freedom.

Suggested Citation

  • Yu Fu & Fei Liang & Cheng He & Haohai Yu & Huaijin Zhang & Yan-Feng Chen, 2023. "Photon-phonon collaboratively pumped laser," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43959-9
    DOI: 10.1038/s41467-023-43959-9
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    References listed on IDEAS

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    1. Rupert F. Oulton & Volker J. Sorger & Thomas Zentgraf & Ren-Min Ma & Christopher Gladden & Lun Dai & Guy Bartal & Xiang Zhang, 2009. "Plasmon lasers at deep subwavelength scale," Nature, Nature, vol. 461(7264), pages 629-632, October.
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