Interference of optical beams with optical vortices is often encountered in singular optics.
Since interferometry makes the phase observable by intensity measurement, it brings out a …

We introduce a simple, single beam method for determination of the topological charge of
polychromatic optical vortices. It is based on astigmatic transformation of singular optical …

We experimentally and theoretically study the abrupt polarization transitions of vector
autofocusing Airy beams associated with the spin–orbit interactions. It is shown that when …

Higher-order optical vortices are inherently unstable in the sense that they tend to split up in
a series of vortices with unity charge. We demonstrate this vortex-splitting phenomenon in …

Condensed matter systems with topological defects in the ground states range from the
Abrikosov phases in superconductors, to various blue phases and twist grain boundary …

Evanescent light can be localized at the nanoscale by resonant absorption in a plasmonic
nanoparticle or taper or by transmission through a nanohole. However, a conventional lens …

Higher-order polarization singularities embedded in tailored vector beams are introduced
and experimentally realized. As holographic modulation allows to define order and location …

We propose a discrete set of continuous deformation of a circular nanoslit to generate and
control optical vortices at the microscopic scale. The process relies on the interplay between …

We investigate discrete nondiffracting beams (DNBs) being the foundation of periodic and
quasiperiodic intensity distributions. Besides the number of interfering plane waves, the …

We present a new all-digital technique to extract the wavefront of a structured light beam.
Our method employs non-homogeneous polarization optics together with dynamic, digital …