Spatially dependent electromagnetically induced transparency

Radwell, N. and Clark, T. W. and Piccirillo, B. and Barnett, S. M. and Franke-Arnold, S. (2015) Spatially dependent electromagnetically induced transparency. [Data Collection]

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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). We use q-plates to generate a probe beam with azimuthally varying phase and polarisation structure, and its right and left circular polarisation 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 polarisation 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.

College / School: College of Science and Engineering > School of Physics and Astronomy
Date Deposited: 29 Apr 2015 11:39
Enlighten Publications URL: http://eprints.gla.ac.uk/105315/
Retention date: 26 March 2025
URI: http://researchdata.gla.ac.uk/id/eprint/161

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Radwell, N. and Clark, T. W. and Piccirillo, B. and Barnett, S. M. and Franke-Arnold, S. (2015); Spatially dependent electromagnetically induced transparency

University of Glasgow

10.5525/gla.researchdata.161

Retrieved: 2017-09-22

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