ElecSus: A program to calculate the electric susceptibility of an atomic ensemble
Abstract
We present a computer program and underlying model to calculate the electric susceptibility of a gas, which is essential to predict its absorptive and dispersive properties. Our program focusses on alkali-metal vapours where we use a matrix representation of the atomic Hamiltonian in the completely uncoupled basis in order to calculate transition frequencies and strengths. The program calculates various spectra for a weak-probe laser beam in an atomic medium with an applied axial magnetic field. This allows many optical devices to be designed, such as Faraday rotators/filters, optical isolators and circular polarisation filters. Fitting routines are also provided with the program which allows the user to perform optical metrology by fitting to experimental data.
Keywords
Cite
@article{arxiv.1409.1873,
title = {ElecSus: A program to calculate the electric susceptibility of an atomic ensemble},
author = {Mark A. Zentile and James Keaveney and Lee Weller and Daniel J. Whiting and Charles S. Adams and Ifan G. Hughes},
journal= {arXiv preprint arXiv:1409.1873},
year = {2015}
}
Comments
16 pages, 9 Figures