We propose a method for creating far-field optical barrier potentials for ultracold atoms with
widths that are narrower than the diffraction limit and can approach tens of nanometers. The …

A six-level inverted-Y scheme is proposed for elucidating the effect of hyperfine levels on the
behavior of the two-dimensional (2D) and three-dimensional (3D) atom localization. An …

We experimentally demonstrate spatial confinement of atomic excitation by adiabatic
passage processes in a rare-earth ion-doped Pr 3+: Y 2 SiO 5 crystal. In particular, we apply …

There has been a recent surge of interest and progress in creating subwavelength free-
space optical potentials for ultracold atoms. A key open question is whether geometric …

We report an experimental demonstration of atom-pattern engineering via Rabi oscillations.
We make use of interferometric Raman beams to drive a microwave transition for laser …

This research project dealt with the experimental implementation of theory proposals to
spatially confine atomic excitations by different techniques of coherent and adiabatic …

The atom localization has been achieved in a four-level V-type atomic system interacting
with two classical unidirectional standing-wave fields and weak probe field in a Doppler …

It is shown, using density matrix calculation, that high precision two-dimensional (2D) atom
localization in V-type system can be achieved by applying an additional microwave coupling …