Publisher： IOP Publishing
E-ISSN： 1361-6455|48|18|185001-185009
ISSN： 0953-4075
Source： Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.48, Iss.18, 2015-09, pp. : 185001-185009
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Abstract
We show that homogeneous line broadening drastically affects the performance of atomic Faraday filters. We study the effects of cell length and find that the behaviour of ‘line-centre’ filters are quite different from ‘wing-type’ filters, where the effect of self-broadening is found to be particularly important. We use a computer optimization algorithm to find the best magnetic field and temperature for Faraday filters with a range of cell lengths, and experimentally realize one particular example using a micro-fabricated 87Rb vapour cell. We find excellent agreement between our theoretical model and experimental data.
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