Scattering of light by disordered structures is a common phenomenon in our daily life. For
many scientific applications, scattering is often treated as a detrimental effect. However …

Random lasers (RLs) are a particular class of optical devices. In a random laser, the optical
feedback is provided by scattering media rather than by an optical cavity, as for traditional …

In conventional lasers optical cavities are used to provide feedback to gain media. Mirrorless
lasers can be built by using disordered structures to induce multiple scattering, which …

We experimentally investigate the Bragg reflection of light at one-dimensionally ordered
atomic structures by using cold atoms trapped in a laser standing wave. By a fine-tuning of …

Coherent effects manifested in light scattering from cold, optically dense and disordered
atomic systems are reviewed from a primarily theoretical point of view. Development of the …

Over the past decades extensive research has been carried out to study the lasing
characteristics of random media. Some unexpected phenomena of random lasing action …

We show that static and oscillating photon bubbles can be excited by diffused light in the
laser cooled matter confined in a magneto-optical trap. The bubble instability is due to the …

There is currently a strong interest in mirrorless lasing systems, in which the electromagnetic
feedback is provided either by disorder (multiple scattering in the gain medium) or by order …

We experimentally study the photonic properties of a cold-atom sample trapped in a one-
dimensional optical lattice under the conditions of electromagnetically induced …

The Siegert relation relates field and intensity temporal correlations. After a historical review
of the Siegert relation and the Hanbury Brown and Twiss effect, we discuss the validity of this …