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@article{Davidson-Marquis:2021:10.1038/s41377-021-00556-z,
author = {Davidson-Marquis, F and Gargiulo, J and Gomez-Lopez, E and Jang, B and Kroh, T and Mueller, C and Ziegler, M and Maier, SA and Kuebler, H and Schmidt, MA and Benson, O},
doi = {10.1038/s41377-021-00556-z},
journal = {Light: Science and Applications},
title = {Coherent interaction of atoms with a beam of light confined in a light cage},
url = {http://dx.doi.org/10.1038/s41377-021-00556-z},
volume = {10},
year = {2021}
}

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TY  - JOUR
AB  - Controlling coherent interaction between optical fields and quantum systems in scalable, integrated platforms is essential for quantum technologies. Miniaturised, warm alkali-vapour cells integrated with on-chip photonic devices represent an attractive system, in particular for delay or storage of a single-photon quantum state. Hollow-core fibres or planar waveguides are widely used to confine light over long distances enhancing light-matter interaction in atomic-vapour cells. However, they suffer from inefficient filling times, enhanced dephasing for atoms near the surfaces, and limited light-matter overlap. We report here on the observation of modified electromagnetically induced transparency for a non-diffractive beam of light in an on-chip, laterally-accessible hollow-core light cage. Atomic layer deposition of an alumina nanofilm onto the light-cage structure was utilised to precisely tune the high-transmission spectral region of the light-cage mode to the operation wavelength of the atomic transition, while additionally protecting the polymer against the corrosive alkali vapour. The experiments show strong, coherent light-matter coupling over lengths substantially exceeding the Rayleigh range. Additionally, the stable non-degrading performance and extreme versatility of the light cage provide an excellent basis for a manifold of quantum-storage and quantum-nonlinear applications, highlighting it as a compelling candidate for all-on-chip, integrable, low-cost, vapour-based photon delay.
AU  - Davidson-Marquis,F
AU  - Gargiulo,J
AU  - Gomez-Lopez,E
AU  - Jang,B
AU  - Kroh,T
AU  - Mueller,C
AU  - Ziegler,M
AU  - Maier,SA
AU  - Kuebler,H
AU  - Schmidt,MA
AU  - Benson,O
DO  - 10.1038/s41377-021-00556-z
PY  - 2021///
SN  - 2047-7538
TI  - Coherent interaction of atoms with a beam of light confined in a light cage
T2  - Light: Science and Applications
UR  - http://dx.doi.org/10.1038/s41377-021-00556-z
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000659149000002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/89945
VL  - 10
ER  -

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