Acceleration of split-field finite difference time-domain method for anisotropic media by means of graphics processing unit computing

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Title: Acceleration of split-field finite difference time-domain method for anisotropic media by means of graphics processing unit computing
Authors: Francés, Jorge | Bleda, Sergio | Alvarez, Mariela L. | Martínez Guardiola, Francisco Javier | Márquez, Andrés | Neipp, Cristian | Beléndez, Augusto
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Split-field finite difference time domain | Graphics processing unit computing | Anisotropic media | Diffraction efficiency | Polarization gratings | Binary phase gratings
Knowledge Area: Óptica | Física Aplicada
Date Created: 12-Apr-2013
Issue Date: 1-Jan-2014
Publisher: SPIE, The International Society for Optical Engineering
Citation: Francés J, Bleda S, Álvarez M, et al; Acceleration of split-field finite difference time-domain method for anisotropic media by means of graphics processing unit computing. Opt. Eng. 0001;53(1):011005-011005. doi:10.1117/1.OE.53.1.011005
Abstract: The implementation of split-field finite difference time domain (SF-FDTD) applied to light-wave propagation through periodic media with arbitrary anisotropy method in graphics processing units (GPUs) is described. The SF-FDTD technique and the periodic boundary condition allow the consideration of a single period of the structure reducing the simulation grid. Nevertheless, the analysis of the anisotropic media implies considering all the electromagnetic field components and the use of complex notation. These aspects reduce the computational efficiency of the numerical method compared with the isotropic and nonperiodic implementation. Specifically, the implementation of the SF-FDTD in the Kepler family of GPUs of NVIDIA is presented. An analysis of the performance of this implementation is done, and several applications have been considered in order to estimate the possibilities provided by both the formalism and the implementation into GPU: binary phase gratings and twisted-nematic liquid crystal cells. Regarding the analysis of binary phase gratings, the validity of the scalar diffraction theory is evaluated by the comparison of the diffraction efficiencies predicted by SF-FDTD. The analysis for the second order of diffraction is extended, which is considered as a reference for the transmittance obtained by the SF-FDTD scheme for periodic media.
Sponsor: This work was supported by the Ministerio de Economía y Competitividad of Spain under projects FIS2011-29803-C02-01 and FIS2011-29803-C02-02 and by the Generalitat Valenciana of Spain under projects PROMETEO/2011/021, ISIC/2012/013, and GV/2012/099.
ISSN: 0091-3286 (Print) | 1560-2303 (Online)
DOI: 10.1117/1.OE.53.1.011005
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2014 Society of Photo-Optical Instrumentation Engineers. This paper was published in Opt. Eng., 53(1) (Jan. 2014) and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Peer Review: si
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