Aperiodic differential method associated with FFF: an efficient electromagnetic computational tool for integrated optical waveguides modelization
| Autor: | Habib Mohamad, Sylvain Blaize, Alain Morand, Pierre Benech |
|---|---|
| Přispěvatelé: | Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Nanotechnologie et d'Instrumentation Optique (LNIO), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), ANR-16-CE39-0016,ODISSEA,Optimisation de structures diffractives pour des applications en sécurité visuelle(2016) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
business.industry Fast Fourier transform Coordinate system Finite-difference time-domain method Topology 01 natural sciences Atomic and Molecular Physics and Optics Finite element method Electronic Optical and Magnetic Materials 010309 optics symbols.namesake Fourier transform Optics Aperiodic graph 0103 physical sciences Convergence (routing) symbols [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic Computer Vision and Pattern Recognition Photonics business ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Journal of the Optical Society of America. A Optics, Image Science, and Vision Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2020, 37 (6), pp.1014. ⟨10.1364/JOSAA.387823⟩ Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2020, 37 (6), pp.1014. ⟨10.1364/JOSAA.387823⟩ |
| ISSN: | 1084-7529 1520-8532 |
| DOI: | 10.1364/JOSAA.387823⟩ |
| Popis: | A reformulation of the differential theory associated with fast Fourier factorization used for periodic diffractive structures is presented. The incorporation of a complex coordinate transformation in the propagation equations allows the modeling of semi-infinite open problems through an artificially periodized space. Hence, the outgoing wave conditions of an open structure must be satisfied. On the other hand, the excitation technique must be adjusted to adapt with guided structures. These modifications turn the differential theory into an aperiodic tool used with guided optical structure. Our method is verified through numerical results and comparisons with the aperiodic Fourier modal method showing enhanced convergence and accuracy, especially when complex-shaped photonic guided devices are considered. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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