Ivor Krešić

TL;DR: It is shown that, at large detuning, the decay rate of the off-axis fluorescence of a large and dilute cloud of cold rubidium atoms after the sudden switch off of a low-intensity laser driving the atomic transition increases with the on-resonance optical depth.

TL;DR: In this article, a wave solution in two-dimensional free space can be mapped to a solution inside a suitably designed non-Hermitian potential landscape such that both solutions share the same spatial distribution of their wave intensity.

TL;DR: In this article, the authors demonstrate spontaneous magnetic ordering in the Zeeman sublevels of the atomic ground state: anti-ferromagnetic structures on a square lattice and ferrimagnetic structures in a hexagonal lattice in zero and a weak longitudinal magnetic field, respectively.

TL;DR: In this paper, a model for pattern-forming instability in a laser-driven optically thick cloud of cold two-level atoms with a planar feedback mirror was developed, enabling a full analysis of transverse patterns in a medium with saturable nonlinearity, taking into account diffraction within the medium and both the transmission and reflection gratings.

TL;DR: In this paper, a red-detuned retroreflected laser beam is applied to a large cloud of cold atoms, and spontaneous formation of 2D structures in the transverse plane corresponding to high contrast spatial modulations of both light field and atomic spins is observed.