gas laser

https://doi.org/10.1351/goldbook.G02585
A @L03459@ in which the @A00106@ is a gas containing a @L03459@ @A00110@. It is typically composed of a plasma discharge tube containing a gas that can be excited with an electric discharge.
Source:
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 1919 [Terms] [Paper]