Flying particle microlaser and temperature sensor in hollow-core photonic crystal fiber.

@article{Zeltner2018FlyingPM,
  title={Flying particle microlaser and temperature sensor in hollow-core photonic crystal fiber.},
  author={Richard Zeltner and Riccardo Pennetta and Shangran Xie and Philip St. J. Russell},
  journal={Optics letters},
  year={2018},
  volume={43 7},
  pages={
          1479-1482
        }
}
Whispering-gallery mode (WGM) resonators combine small optical mode volumes with narrow resonance linewidths, making them exciting platforms for a variety of applications. Here we report a flying WGM microlaser, realized by optically trapping a dye-doped microparticle within a liquid-filled hollow-core photonic crystal fiber (HC-PCF) using a CW laser and then pumping it with a pulsed excitation laser whose wavelength matches the absorption band of the dye. The laser emits into core-guided modes… 

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