Numerical simulation of generation of optical vortices at light beam propagation through a layer of a nematic liquid crystal

Autor: Sergey I. Trashkeev, Roman Galev, Alexey N. Kudryavtsev
Rok vydání: 2017
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
Popis: Light beam propagation through an anisotropic liquid crystal medium is numerically simulated. The Maxwell equations are solved by the FDTD method on computational grids with up to 6 · 108 nodes. Propagation of the fundamental mode HE11 of the fiber-optical light guide through a layer of a nematic liquid crystal filling a transverse gap in the optical fiber and containing a disclination. The behavior of the angular moment as a function of the layer thickness and disclination power is studied. System parameters that ensure the most effective generation of twisted light beams are found.
Databáze: OpenAIRE