Title

Finite-Difference Time-Domain Simulation of a Liquid-Crystal Optical Phased Array

Publication Title

Journal of the Optical Society of America A-Optics Image Science and Vision

Publication Date

2-2005

Document Type

Article

DOI

10.1364/JOSAA.22.000346

Keywords

spatial light-modulator, beam-steering devices, maxwells equations, field

Disciplines

Physics

Abstract

Accurate modeling of a high-resolution, liquid-crystal-based, optical phased array (OPA) is demonstrated. The modeling method is extendable to cases where the array element size is close to the wavelength of light. This is accomplished through calculating an equilibrium liquid-crystal (LC) director field that takes into account the fringing electric fields in LC OPAs with small array elements and by calculating the light transmission with a finite-difference time-domain method that has been extended for use in birefringent materials. The diffraction efficiency for a test device is calculated and compared with the simulation. (C) 2005 Optical Society of America.

Comments

This paper was published in the Journal of the Optical Society of America A and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/JOSAA.22.000346. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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