Nature Communications (Feb 2020)

Reconfigurable symmetry-broken laser in a symmetric microcavity

  • Qi-Tao Cao,
  • Ruishan Liu,
  • Heming Wang,
  • Yu-Kun Lu,
  • Cheng-Wei Qiu,
  • Stefan Rotter,
  • Qihuang Gong,
  • Yun-Feng Xiao

DOI
https://doi.org/10.1038/s41467-020-14861-5
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 7

Abstract

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The directional lasing emission in whispering gallery microcavities typically resorts to breaking the structure symmetry. Here the authors demonstrate a reconfigurable symmetry-broken microlaser in a symmetric ultrahigh-Q whispering gallery microcavity, in which a chirality of lasing fields is empowered spontaneously by nonlinear effects.