Photonic crystals are well known for their celebrated photonic band-gaps—the forbidden
frequency ranges, for which the light waves cannot propagate through the structure. The …

We propose a simple realistic two-dimensional complex parity-time-symmetric photonic
structure that is described by a non-Hermitian potential but possesses real-valued …

We propose and explore a physical mechanism for the stabilization of the complex
spatiotemporal dynamics in arrays (bars) of broad area laser diodes taking advantage of the …

We introduce a class of systems holding parity-time (PT) symmetry locally, whereas being
globally P symmetric. The potential, U= U (| r|), fulfills PT symmetry with respect to …

A collection of cold rubidium atoms in three-level configuration trapped in two dimensional
(2D) optical lattices is revisited. The trapped atoms are considered in the Gaussian density …

We show that the emission of broad-area semiconductor amplifiers and lasers can be
efficiently stabilized by introducing two-dimensional periodic modulations simultaneously on …

We show that a two-dimensional periodic modulation of the pump profile (modulation both
along and perpendicular to the optical axis) can suppress the modulation instability in broad …

We provide a feasible and compact scheme to control and stabilize the spatiotemporal
dynamics of broad-area semiconductor (BAS) lasers. The proposal is based on the ability of …

We investigate beam sha** in broad area semiconductor amplifiers induced by a 2-
dimensional (longitudinal and lateral) periodic modulation of the pump on a scale of several …

The goal and essential parameter of laser light conversion is achieving emitted radiation of
higher brightness. For many applications, the laser beam must have the highest available …