In physics, wave propagation is traditionally analyzed by means of regular solutions of wave
equations. However, solutions of wave equations in two and three dimensions often possess …

The? eld that encompasses the term “quantum interference” combines a number of separate
concepts, and has a variety of manifestations in d-ferent areas of physics. In the sense …

Coherent diffusion pertains to the motion of atomic dipoles experiencing frequent collisions
in vapor while maintaining their coherence. Recent theoretical and experimental studies on …

We present experimental results on the transfer of the orbital angular momentum of light to a
system of cold cesium atoms. A nondegenerate four-wave mixing process was used as an …

In recent years, various methods have been developed to generate laser beams with zero
central intensity such as Laguerre-Gaussian beams, high-order Bessel-Gaussian beams …

In the framework of the complex cubic-quintic Ginzburg-Landau equation, we perform a
systematic analysis of two-dimensional axisymmetric doughnut-shaped localized pulses …

We propose that a coherently prepared four-level atomic medium can provide a versatile
platform for realizing parity-time (PT) symmetric optical potentials. Different types of PT …

Cavity-linewidth narrowing in a ring cavity that is due to the high dispersion and reduced
absorption produced by electromagnetically induced transparency (EIT) in rubidium-atom …

Diffractive optics are used to create low-and high-order Laguerre-Gaussian (LG) beams from
the output of a diode laser. We examine the mode purities, conversion efficiencies, extinction …

The observation of confinement and guiding of light induced by an optical vortex soliton
(OVS) in a cubic–quintic (defocusing–focusing) medium is reported. The waveguide effect …