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arXiv · 1504.03651

Effect of line broadening on the performance of Faraday filters

Mark A. Zentile·Renju S. Mathew·Daniel J. Whiting·James Keaveney·Charles S. Adams·Ifan G. Hughes
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Abstract

We show that homogeneous line broadening drastically affects the performance of atomic Faraday filters. We use a computerized optimization algorithm to find the best magnetic field and temperature for Faraday filters with a range of cell lengths. The effect of self-broadening is found to be particularly important for short vapour cells, and for `wing-type' filters. Experimentally we realize a Faraday filter using a micro-fabricated $^{87}$Rb vapour cell. By modelling the filter spectrum using the ElecSus program we show that additional homogeneous line broadening due to the background buffer-gas pressure must also be included for an accurate fit.

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Mark A. Zentile, Renju S. Mathew, Daniel J. Whiting, James Keaveney, Charles S. Adams, Ifan G. Hughes. 2015-04-14. Effect of line broadening on the performance of Faraday filters. https://doi.org/10.1088/0953-4075%2F48%2F18%2F185001

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