Precise-Integration Time-Domain Formulation for Optical Periodic Media
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Title: | Precise-Integration Time-Domain Formulation for Optical Periodic Media |
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Authors: | Sirvent-Verdú, Joan Josep | Francés, Jorge | Márquez, Andrés | Neipp, Cristian | Alvarez, Mariela L. | Puerto, Daniel | Gallego, Sergi | Pascual, Inmaculada |
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. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías |
Keywords: | Computational electromagnetics | Precise-integration time-domain (PITD) method | Periodic media | Anisotropic media | Diffractive optics |
Knowledge Area: | Física Aplicada | Óptica |
Issue Date: | 20-Dec-2021 |
Publisher: | MDPI |
Citation: | Sirvent-Verdú JJ, Francés J, Márquez A, Neipp C, Álvarez M, Puerto D, Gallego S, Pascual I. Precise-Integration Time-Domain Formulation for Optical Periodic Media. Materials. 2021; 14(24):7896. https://doi.org/10.3390/ma14247896 |
Abstract: | A numerical formulation based on the precise-integration time-domain (PITD) method for simulating periodic media is extended for overcoming the Courant-Friedrich-Levy (CFL) limit on the time-step size in a finite-difference time-domain (FDTD) simulation. In this new method, the periodic boundary conditions are implemented, permitting the simulation of a wide range of periodic optical media, i.e., gratings, or thin-film filters. Furthermore, the complete tensorial derivation for the permittivity also allows simulating anisotropic periodic media. Numerical results demonstrate that PITD is reliable and even considering anisotropic media can be competitive compared to traditional FDTD solutions. Furthermore, the maximum allowable time-step size has been demonstrated to be much larger than that of the CFL limit of the FDTD method, being a valuable tool in cases in which the steady-state requires a large number of time-steps. |
Sponsor: | The work was supported by the “Ministerio de Ciencia e Innovación” of Spain (projects FIS2017-82919-R; PID2019-106601RB-I00), by the “Universidad de Alicante” (UATALENTO18-10; ACIE-20-10), and by Generalitat Valenciana (projects BEST/2021/021; IDIFEDER/2021/014, potential FEDER funding; PROMETEO/2021/006). |
URI: | http://hdl.handle.net/10045/121235 |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma14247896 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Peer Review: | si |
Publisher version: | https://doi.org/10.3390/ma14247896 |
Appears in Collections: | INV - GHPO - Artículos de Revistas |
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Sirvent-Verdu_etal_2021_Materials.pdf | 1,26 MB | Adobe PDF | Open Preview | |
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