Optimized ultra-narrow atomic bandpass filters via magneto-optic rotation in an unconstrained geometry

Keaveney, James; Wrathmall, Steven A.; Adams, Charles S.; Hughes, Ifan G.

doi:10.1364/ol.43.004272

Optimized ultra-narrow atomic bandpass filters via magneto-optic rotation in an unconstrained geometry

Keaveney, James; Wrathmall, Steven A.; Adams, Charles S.; Hughes, Ifan G.

Authors

James Keaveney

Dr Steven Wrathmall s.a.wrathmall@durham.ac.uk
Assistant Professor

Charles S. Adams

Professor Ifan Hughes i.g.hughes@durham.ac.uk
Professor

Abstract

Atomic bandpass filters are widely used in a variety of applications, owing to their high peak transmission and narrow bandwidths. Much of the previous literature has used the Faraday effect to realize these filters, where an axial magnetic field is applied across the atomic medium. Here we show that by using a non-axial magnetic field, the performance of these filters can be improved in comparison to the Faraday geometry. We optimize the performance of these filters using a numerical model and verify their performance by direct quantitative comparison with experimental data. We find excellent agreement between experiment and theory. These optimized filters could find use in many of the areas where Faraday filters are currently used, with little modification to the optical setup, allowing for improved performance with relatively little change.

Citation

Keaveney, J., Wrathmall, S. A., Adams, C. S., & Hughes, I. G. (2018). Optimized ultra-narrow atomic bandpass filters via magneto-optic rotation in an unconstrained geometry. Optics Letters, 43(17), 4272-4275. https://doi.org/10.1364/ol.43.004272

Journal Article Type	Article
Acceptance Date	Jul 9, 2018
Online Publication Date	Aug 29, 2018
Publication Date	Sep 1, 2018
Deposit Date	Jul 9, 2018
Publicly Available Date	Aug 31, 2018
Journal	Optics Letters
Print ISSN	0146-9592
Electronic ISSN	1539-4794
Publisher	Optica
Peer Reviewed	Peer Reviewed
Volume	43
Issue	17
Article Number	4272-4275
Pages	4272-4275
DOI	https://doi.org/10.1364/ol.43.004272

Files

Published Journal Article (1.5 Mb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.