An asymptotic procedure based upon a two-scale approach is developed for wave
propagation in a doubly periodic inhomogeneous medium with a characteristic length scale …

We have theoretically studied the electronic and optical properties of a GaAs/AlGaAs elliptic
quantum ring under in-plane electric field. The effects of an eccentric internal barrier-placed …

Guided waves propagating in lossy media are encountered in many problems across
different areas of physics such as electromagnetism, elasticity and solid-state physics. They …

A two-scale approach, for discrete lattice structures, is developed that uses microscale
information to find asymptotic homogenised continuum equations valid on the macroscale …

The effects of an in-plane electric field and eccentricity on the electronic spectrum of a GaAs
quantum ring in a perpendicular magnetic field are studied. The effective-mass equation is …

We investigate the existence of trapped modes in elastic plates of constant thickness, which
possess bends of arbitrary curvature and flatten out at infinity; such trapped modes consist of …

The band spectrum and associated Floquet–Bloch eigensolutions, arising in acoustic and
electromagnetic waveguides, which have periodic structure along the guide while remaining …

The electronic states of quantum rings with centerlines of arbitrary shape and non-uniform
width in a threading magnetic field are calculated. The solutions of the Schrödinger equation …

The effects of external electric and magnetic fields on the energy spectrum of quantum rings
made out of a bidimensional semiconductor material with anisotropic band structures are …

A comprehensive study of anisotropic quantum rings, QRs, subject to axial and in-plane
magnetic field, both aligned and transverse to the anisotropy direction, is carried out …