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Keywords:

  • microlasers;
  • whispering gallery modes;
  • hydrophobic effect;
  • hemispheres;
  • self assembly
Thumbnail image of graphical abstract

Hemispherical microresonators with tunable sizes are obtained based on the hydrophobic effect on distributed Bragg reflectors. Under optical excitation, whispering gallery mode lasing is observed from the dye-doped microresonators at room temperature. The results indicate the potential application of the flexible microresonators in photonic integrated circuits.