@misc{indiciaeaa0b130cb68e,
  title = {Ultralow-threshold Raman lasing with CaF2 resonators.},
  author = {Ivan S Grudinin and Lute Maleki},
  year = {2007},
  doi = {10.1364/ol.32.000166},
  url = {https://pubmed.ncbi.nlm.nih.gov/17186052/},
  note = {Source identifier: 17186052}
}