{"term":{"id":"03991","title":"molecular laser","longtitle":"IUPAC Gold Book - molecular laser","doi":"10.1351\/goldbook.M03991","code":"M03991","status":"current","definitions":[{"id":1,"text":"A gas laser which makes use of electronic, vibrational or rotational energy levels in molecules. The molecules can be excited by an electric discharge, as in the case of the $\\ce{N2}$ or $\\ce{CO2}$ laser, by chemical reactions, as in the $\\ce{HF}$ or $\\ce{DF}$ lasers, or by another laser, as in the $\\ce{CH3F}$ far IR laser.","links":[{"term":"gas laser","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/G02585"},{"term":"laser","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/L03459"}],"sources":["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 1920 (https:\/\/doi.org\/10.1351\/pac199567111913)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/M03991\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/M03991\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/M03991\/plain"},"citation":"Citation: 'molecular 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.M03991","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":"2026-04-20T20:04:56+00:00"}}