Rectilinear lattices of polarization vortices with various spatial polarization distributions

Adaptive algorithms for two-channel polarization sensing under various polarization statistics with nonuniform distributions.

The polarization of light carries much useful information about the environment. Biological studies have shown that some animal species use polarization information for navigation and other purposes. It has been previously shown that a bioinspired polarization-difference imaging (PDI) technique can facilitate detection and feature extraction of targets in scattering media. It has also been esta...

Transverse polarization distributions

The transverse polarization (or transversity) distributions ∆T q(x), introduced 20 years ago by Ralston and Soper [1] and studied in more detail in the last decade [2], are one of the three sets of leading-twist quark and antiquark distribution functions – the other two are the momentum distributions q(x) and the helicity distributions ∆q(x). (Note that ∆T q is often called h1). Formally ∆T q i...

Helicity, polarization, and Riemann-Silberstein vortices

Bialynicki-Birula has defined Riemann-Silberstein (RS) vortices as surfaces in spacetime where the complex form of a free electromagnetic field given by F = E + iB is null (F · F = 0) and shown that they can be interpreted as the collective history swept out by moving vortex lines of the field. Formally, the nullity condition is similar to the definition of C-lines associated with a monochromat...

Field polarization and polarization charge distributions in plasmon resonant nanoparticles

We study the plasmon resonances for small two-dimensional silver particles (nanowires) with elliptical or triangular shapes in the 20 nm size range. While the elliptical particle has only two resonances, a well known fact, we demonstrate that the triangular particle displays a much more complex behaviour with several resonances over a broad wavelength range. Using animations of the field amplit...

Spatial Polarization Characteristic of orthogonal polarization binary array antenna