Abstract We examine an extended (2+ 1)-dimensional perturbed nonlinear Schrödinger
equation with Kerr law nonlinearity in a nano-optical fiber with fourth-order spatial …

The main objective of this study is to investigate W-shaped and other types of optical solitons
in nano optical fibers. The medium is described by perturbed nonlinear Schrödinger …

We study experimentally, analytically and numerically the backward-wave propagation, and
formation of discrete bright and dark solitons in a nonlinear electrical lattice. We observe …

By employing the traveling-wave hypothesis to the coupled nonlinear Schrödinger equation
(CNLSE), the constraint relation on metamaterials parameters and the auxiliary equation …

Quintic derivative nonlinear Schrödinger equations arise in various physical contexts,
notably in the study of hydrodynamic wave packets and media with negative refractive index …

We have investigated the modulation instability (MI) in a negative index media (NIM) or
metamaterial (MM) using a new generalized model describing the pulse propagation in a …

A fundamental discussion of linearly polarised bright spatial soliton beams that are localised
in a planar waveguide is developed in a special way that leads to the introduction of …

Wave-speed management of soliton pulses in a nonlinear metamaterial exhibiting a rich
variety of physical effects that are important in a wide range of practical applications, is …

We predict the existence of gray (dark) solitary waves in negative-index materials on the
basis of a derived higher-order nonlinear Schrödinger equation. The conditions for the …

We investigate the behavior of the electromagnetic wave that propagates in a metamaterial
for negative index regime. Second-order dispersion and cubic-quintic nonlinearities are …