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A finite element beam propagation method for simulation of liquid crystal devices

Vanbrabant, PJM; Beeckman, J; Neyts, K; James, R; Fernandez, FA; (2009) A finite element beam propagation method for simulation of liquid crystal devices. OPT EXPRESS , 17 (13) 10895 - 10909. Gold open access

Abstract

An efficient full-vectorial finite element beam propagation method is presented that uses higher order vector elements to calculate the wide angle propagation of an optical field through inhomogeneous, anisotropic optical materials such as liquid crystals. The full dielectric permittivity tensor is considered in solving Maxwell's equations. The wide applicability of the method is illustrated with different examples: the propagation of a laser beam in a uniaxial medium, the tunability of a directional coupler based on liquid crystals and the near-field diffraction of a plane wave in a structure containing micrometer scale variations in the transverse refractive index, similar to the pixels of a spatial light modulator. (C) 2009 Optical Society of America

Type:Article
Title:A finite element beam propagation method for simulation of liquid crystal devices
Open access status:An open access publication
Publisher version:http://www.opticsexpress.org
Keywords:OPTICAL WAVE-GUIDES, LIGHT
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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