All Outputs (5)

Quantum and nonlinear effects in light transmitted through planar atomic arrays (2020)
Journal Article
Bettles, R. J., Lee, M. D., Gardiner, S. A., & Ruostekoski, J. (2020). Quantum and nonlinear effects in light transmitted through planar atomic arrays. Communications Physics, 3(1), Article 141. https://doi.org/10.1038/s42005-020-00404-3

Understanding strong cooperative optical responses in dense and cold atomic ensembles is vital for fundamental science and emerging quantum technologies. Methodologies for characterizing light-induced quantum effects in such systems, however, are sti... Read More about Quantum and nonlinear effects in light transmitted through planar atomic arrays.

Topological properties of a dense atomic lattice gas (2017)
Journal Article
Bettles, R. J., Minář, J., Adams, C. S., Lesanovsky, I., & Olmos, B. (2017). Topological properties of a dense atomic lattice gas. Physical Review A, 96(4), Article 041603(R). https://doi.org/10.1103/physreva.96.041603

We investigate the existence of topological phases in a dense two-dimensional atomic lattice gas. The coupling of the atoms to the radiation field gives rise to dissipation and a nontrivial coherent long-range exchange interaction whose form goes bey... Read More about Topological properties of a dense atomic lattice gas.

Cooperative eigenmodes and scattering in one-dimensional atomic arrays (2016)
Journal Article
Bettles, R. J., Gardiner, S. A., & Adams, C. S. (2016). Cooperative eigenmodes and scattering in one-dimensional atomic arrays. Physical Review A, 94(4), Article 043844. https://doi.org/10.1103/physreva.94.043844

Collective coupling between dipoles can dramatically modify the optical response of a medium. Such effects depend strongly on the geometry of the medium and the polarization of the light. Using a classical coupled dipole model, here we investigate th... Read More about Cooperative eigenmodes and scattering in one-dimensional atomic arrays.

Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array (2016)
Journal Article
Bettles, R. J., Gardiner, S. A., & Adams, C. S. (2016). Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array. Physical Review Letters, 116(10), Article 103602. https://doi.org/10.1103/physrevlett.116.103602

Enhancing the optical cross section is an enticing goal in light-matter interactions, due to its fundamental role in quantum and nonlinear optics. Here, we show how dipolar interactions can suppress off-axis scattering in a two-dimensional atomic arr... Read More about Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array.

Cooperative ordering in lattices of interacting two-level dipoles (2015)
Journal Article
Bettles, R., Gardiner, S., & Adams, C. (2015). Cooperative ordering in lattices of interacting two-level dipoles. Physical Review A, 92(6), Article 063822. https://doi.org/10.1103/physreva.92.063822

We investigate the cooperative behavior of regular monolayers of driven two-level dipoles, using classical electrodynamics simulations. The dipolar response results from the interference of many cooperative eigenmodes, each frequency-shifted from the... Read More about Cooperative ordering in lattices of interacting two-level dipoles.