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ElecSus : extension to arbitrary geometry magneto-optics.

Keaveney, James and Adams, Charles S. and Hughes, Ifan G. (2017) 'ElecSus : extension to arbitrary geometry magneto-optics.', Computer physics communications., 224 . pp. 311-324.


We present a major update to ElecSus, a computer program and underlying model to calculate the electric susceptibility of an alkali-metal atomic vapour. Knowledge of the electric susceptibility of a medium is essential to predict its absorptive and dispersive properties. In this version we implement several changes which significantly extend the range of applications of ElecSus, the most important of which is support for non-axial magnetic fields (i.e. fields which are not aligned with the light propagation axis). Supporting this change requires a much more general approach to light propagation in the system, which we have now implemented. We exemplify many of these new applications by comparing ElecSus to experimental data. In addition, we have developed a graphical user interface front-end which makes the program much more accessible, and have improved on several other minor areas of the program structure.

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Publisher statement:© 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (
Date accepted:01 December 2017
Date deposited:07 February 2018
Date of first online publication:11 December 2017
Date first made open access:07 February 2018

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