Title: gas laser
Long Title: IUPAC Gold Book - gas laser
DOI: 10.1351/goldbook.G02585
Status: current

Definition
A laser in which the active medium is a gas containing a laser active species. It is typically composed of a plasma discharge tube containing a gas that can be excited with an electric discharge.

Related Terms
- active medium: https://goldbook.iupac.org//terms/view/A00106
- active species: https://goldbook.iupac.org//terms/view/A00110
- laser: https://goldbook.iupac.org//terms/view/L03459

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 (https://doi.org/10.1351/pac199567111913)

Related Reference
- PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2244 (https://doi.org/10.1351/pac199668122223)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/G02585/html
- json: https://goldbook.iupac.org/terms/view/G02585/json
- xml: https://goldbook.iupac.org/terms/view/G02585/xml

Citation: Citation: 'gas laser' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.G02585
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Accessed: 2026-05-28T05:35:34+00:00