Title: atomic laser Long Title: IUPAC Gold Book - atomic laser DOI: 10.1351/goldbook.A00495 Status: current Definition A gas laser which is pumped using energy transfer from other atoms or molecules. Examples are the helium-neon ($\ce{HeNe}$) and the copper vapour laser. Related Terms - copper vapour laser: https://goldbook.iupac.org//terms/view/C01338 - gas laser: https://goldbook.iupac.org//terms/view/G02585 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) Other Outputs - html: https://goldbook.iupac.org/terms/view/A00495/html - json: https://goldbook.iupac.org/terms/view/A00495/json - xml: https://goldbook.iupac.org/terms/view/A00495/xml Citation: Citation: 'atomic 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.A00495 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-20T23:08:19+00:00