TY  - RPRT
TI  - Ultralow-threshold Raman lasing with CaF2 resonators.
AU  - Ivan S Grudinin
AU  - Lute Maleki
PY  - 2007
DO  - 10.1364/ol.32.000166
UR  - https://pubmed.ncbi.nlm.nih.gov/17186052/
ID  - 17186052
ER  -