San José State University
Thayer Watkins
Silicon Valley
& Tornado Alley

The Voigt Profile for Spectral Line Shapes

The Voigt Profile for spectral line shapes combines the Lorentz and the Doppler effects in the functional form

f(ν) = A∫-∞γe-s²ds/[((ν0-ν)−s)²+γ²]

where A is a normalizing constant and γ is a parameter related to the width of the profile function.

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