Almost twenty years ago, light was slowed down to less than 10-7 of its vacuum speed in a
cloud of ultracold atoms of sodium. Upon a sudden turn-off of the coupling laser, a slow light …

Multiparameter estimation theory offers a general framework to explore imaging techniques
beyond the Rayleigh limit. While optimal measurements of single parameters characterizing …

Coupling light to ensembles of strongly interacting particles has emerged as a promising
route toward achieving few photon nonlinearities. One specific way to implement this kind of …

Cold atoms trapped in one-dimensional optical lattices and driven to the four-level N
configuration are exploited for achieving an electromagnetically induced grating with parity …

A novel tunable all-optical grating is realized experimentally in a V+ Ξ configuration
coherent rubidium thermal vapor. This new energy level structure employs a Rydberg level …

The photonic graphene in atoms not only has the typical photonic band structures but also
exhibits controllable optical properties that are difficult to achieve in the natural graphene …

When ensembles of atoms interact with coherent light fields, a great many interesting and
useful effects can be observed. In particular, the group velocity of the coherent fields can be …

Fraunhofer light diffraction across a thin two-dimensional lattice of cold atoms subject to
transverse hybrid modulations of two standing-wave crossed pump fields is seen to yield …

Polarization oscillating beams, namely, polarization standing waves, commonly formed by a
pair of coherent counterpropagating light waves with orthogonal polarizations, oscillate their …

Coupling photons to Rydberg excitations in a cold atomic gas yields unprecedentedly large
optical nonlinearities at the level of individual light quanta. Here, the basic mechanism …