A comparison of methods for the calculation of Voigt profiles

Physics – Optics

Scientific paper

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Approximation, Atmospheric Optics, Computer Programs, Light Transmission, Voigt Effect, Algorithms, Fortran

Scientific paper

Six algorithms and approximations for the calculation of Voigt profiles are compared for accuracy and time required for calculation. The Gautschi program is recommended for high-precision calculations due to its good accuracy, and when a few percent error is acceptable in the Voigt profile, both the Kielkopf and Matvejev approximations may be used jointly to yield reasonable accuracy and high-speed calculations. In all other cases the Drayson program is useful.

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