Freeform optics are key for generating prescribed illumination patterns from given sources,
which are crucial for solid-state lighting and machine vision illumination. There is an …

Hybrid refractive-diffractive lenses combine the light efficiency of refractive lenses with the
information encoding power of diffractive optical elements (DOE), showing great potential as …

A ray tracing framework based on the utilization of multiple Huygens surfaces is introduced
and evaluated. As such, complex propagation environments are divided into smaller …

Free-space diffractions are an optical phenomenon where light appears to" bend" around
the geometric edges and corners of scene objects. In this paper we present an efficient …

Fourier ptychographic microscopy (FPM) is a recent technique to overcome the diffraction
limit of a low numerical aperture (NA) objective lens by algorithmic post-processing of …

A general reformulation of classical sharp-edge diffraction theory is proposed within paraxial
approximation. The, not so much known, Poincaré vector potential construction is employed …

In every real optical system, the light beam or ray bundle is laterally limited by diaphragms or
lens boundaries. Therefore, from a rigorous point of view, a diffraction calculation of the point …

Coherent diffractive imaging (CDI) experiments are adequately simulated assuming the thin
sample approximation and using a Fresnel or Fraunhofer wavefront propagator to obtain the …

The computation of diffraction has been always a challenge in ray tracing simulations.
Despite the popularity of the ray based methods such as geometrical theory of diffraction …

An electromagnetic ray tracing framework that utilizes multiple Huygens surfaces is
presented and evaluated. The Huygens surfaces introduced in this method partition large …