Term: helium–neon laser
https://doi.org/10.1351/goldbook.H02768

Definition:
A continuous wave laser emitting mainly at 632.8 nm, 1152.3 nm, and 3391.3 nm from excited neutral Ne atoms.

Related Terms:
1) laser (http://doi.org/10.1351/goldbook.L03459).
2) gas lasers (http://doi.org/10.1351/goldbook.G02585).

Source: PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2246 (https://doi.org/10.1351/pac199668122223)

Citation: 'helium–neon laser' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.H02768

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