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

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.

References in corpus (9)

• Double-slit photoelectron interference in strong-field ionization of the neon dimer
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Optical interface created by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber
• Demonstration of a state-insensitive, compensated nanofiber trap
• Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries
• Large Bragg Reflection from One-Dimensional Chains of Trapped Atoms Near a Nanoscale Waveguide
• Coherent backscattering of light off one-dimensional atomic strings
• Simultaneous optical trapping and detection of atoms by microdisk resonators
• Plasmonic surface traps with arbitrary shape for cold atoms