liquid ion laser
A liquid laser in which rare earth ions in solution are used as the laser active medium. An example is KrF in liquid Krlaser.
PAC, 1995, 67, 1913. 'Nomenclature, symbols, units, and their usage in spectrochemical analysis-XV. Laser-based molecular spectroscopy for chemical analysis - laser fundamentals (IUPAC Recommendations 1995)' on page 1921 (