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PEARLTransVoigt

Description

The Voigt profile is used in spectroscopy when a given line shape is neither a Gaussian nor a Lorentzian but rather is a convolution of the two. This function is described in Igor Technical Note 26 [1] and is based on a computational method by Humlícek [2]. Its relative accuracy is better than 0.0001 and most of the time is much better. This function, as coded, is currently only to be used on PEARL data in the Transfit algorithm.

Properties (fitting parameters)

Name Default Description
Position 1096.3  
LorentzianFWHM 45.8  
GaussianFWHM 25.227  
Amplitude 2.08  
Bg0 25.0  
Bg1 0.015  
Bg2 0.0  

Source

Python: PEARLTransVoigt.py (last modified: 2021-05-27)