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arXiv · 2002.05457

Tailored optical potentials for Cs atoms above waveguides with focusing dielectric nano-antenna

Angeleene S. Ang·Alexander S. Shalin·Alina Karabchevsky
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Abstract

Tuning the near-field using all-dielectric nano-antennae offers a promising approach for trapping atoms, which could enable strong single-atom/photon coupling. Here we report the simulation results of an optical trapping concept, in which a silicon nano-antenna produces a trapping potential for atoms in a chip-scale configuration. Using counter-propagating incident fields, bichromatically detuned from the atomic cesium D-lines, we numerically investigate the dependence of the optical potential on the nano-antenna geometry. We tailor the near-field potential landscape by tuning the evanescent field of the waveguide using a toroidal nano-antenna, a configuration that enables trapping of ultracold Cs atoms.

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Angeleene S. Ang, Alexander S. Shalin, Alina Karabchevsky. 2020-05-03. Tailored optical potentials for Cs atoms above waveguides with focusing dielectric nano-antenna. https://doi.org/10.1364/ol.394557

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