Spatially dependent electromagnetically induced transparency

Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. M. and Franke-Arnold, S. (2015) Spatially dependent electromagnetically induced transparency. Physical Review Letters, 114(12), 123603. (doi:10.1103/PhysRevLett.114.123603)

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Abstract

Recent years have seen vast progress in the generation and detection of structured light, with potential applications in high capacity optical data storage and continuous variable quantum technologies. Here we measure the transmission of structured light through cold rubidium atoms and observe regions of electromagnetically induced transparency (EIT), using the phase profile as control parameter for the atomic opacity. With q plates we generate a probe beam with azimuthally varying phase and polarization structure, and its right and left circular polarization components provide the probe and control of an EIT transition. We observe an azimuthal modulation of the absorption profile that is dictated by the phase and polarization structure of the probe laser. Conventional EIT systems do not exhibit phase sensitivity. We show, however, that a weak transverse magnetic field closes the EIT transitions, thereby generating phase-dependent dark states which in turn lead to phase-dependent transparency, in agreement with our measurements.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barnett, Professor Stephen and Radwell, Dr Neal and Franke-Arnold, Dr Sonja
Authors: Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. M., and Franke-Arnold, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Copyright Holders:Copyright © 2015 American Physical Society
First Published:First published in Physical Review Letters 114(12):123603
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.
Related URLs:
Data DOI:10.5525/gla.researchdata.161

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
637131Quantum memory and processing of orbital angular momentum information in atomic gassesSonja Franke-ArnoldLeverhulme Trust (LEVERHULME)RPG-2013-386S&E P&A - PHYSICS & ASTRONOMY
549871Challenges in Orbital Angular MomentumMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I012451/1P&A - PHYSICS & ASTRONOMY
549872Challenges in Orbital Angular MomentumMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I012451/1P&A - PHYSICS & ASTRONOMY