Gaussian-Lorentzian SUM (GLS)
Overlay of Pure 100% Gaussian and Pure 100% Lorentzian Peak-shapes, normalized to maximum peak intensity
True VOIGT (is not a convolution of Gaussian and Lorentzian peak-shapes)
Plot of the centered Voigt profile for four cases.
Each case has a full width at half-maximum (FWHM) of very nearly 3.6.
The black and red line profiles are the limiting cases of the Gaussian (γ =0) and the Lorentzian (σ =0) profiles respectively.
Adjusted to show overlay based on peak area
Adjusted to show location of FWHM for each peak-shape.
Overlay of Gaussian-Lorentzian Summed Peak-shapes
Pearson VII Peak-shape