We consider propagating bound states in the continuum in dielectric gratings. The gratings
consist of a slab with ridges periodically arranged either on top or on both sides of the slab …

Guided-mode resonant gratings with spatially varying parameters are widely used as linear
variable optical filters, and their behavior is often described using the so-called local …

The resonant-state expansion, a recently developed powerful method in electrodynamics, is
generalized here for open optical systems containing magnetic, chiral, or bi-anisotropic …

Quantitative optical measurements of deep subwavelength, three-dimensional (3D),
nanometric structures with sensitivity to sub-nanometer details address a ubiquitous …

We present an open-geometry Fourier modal method based on a new combination of open
boundary conditions and an efficient k-space discretization. The open boundary of the …

Rigorous scattering models are based on Maxwell's equations and can provide high-
accuracy solutions to model electromagnetic wave scattering from objects. Being able to …

A rigorous approach for precise and efficient calculation of light propagation along
nonuniform waveguides is presented. Resonant states of a uniform waveguide, which satisfy …

Modeling the field produced by a point-like dipole with an arbitrary location in the presence
of a rotationally invariant nanostructure is an important issue in the context of designing …

This paper deals with a full vectorial generalization of the aperiodic Fourier modal method
(AFMM) in cylindrical coordinates. The goal is to predict some key characteristics such as …

Scatterometry is an optical metrology technique in which light scattered from a specifically
designed grating stack (overlay target) is measured in the far-field. Using 1D periodic …