Gaussian band shape 

https://doi.org/10.1351/goldbook.G02597
A band shape described by the Gaussian function: F(ν−ν0)=aπ e−a2 (ν−ν0)2 In this equation, a−1 is proportional to the width of the band, and ν0 is the frequency of the band maximum.
See also: Lorentzian band shape
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2244 [Terms] [Paper]
See also:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2192 [Terms] [Paper]
Citation: 'Gaussian band shape' 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.G02597 RIS BibTex EndNote
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Last revised: February 24, 2014