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Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides

Nanostructured dielectric waveguides are of high interest for biosensing applications, light emitting devices as well as solar cells. Multiperiodic and aperiodic nanostructures allow for custom-designed spectral properties as well as near-field characteristics with localized modes. Here, a compariso...

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Autores principales: Paulsen, Moritz, Neustock, Lars Thorben, Jahns, Sabrina, Adam, Jost, Gerken, Martina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7062652/
https://www.ncbi.nlm.nih.gov/pubmed/32214612
http://dx.doi.org/10.1007/s11082-017-0918-6
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author Paulsen, Moritz
Neustock, Lars Thorben
Jahns, Sabrina
Adam, Jost
Gerken, Martina
author_facet Paulsen, Moritz
Neustock, Lars Thorben
Jahns, Sabrina
Adam, Jost
Gerken, Martina
author_sort Paulsen, Moritz
collection PubMed
description Nanostructured dielectric waveguides are of high interest for biosensing applications, light emitting devices as well as solar cells. Multiperiodic and aperiodic nanostructures allow for custom-designed spectral properties as well as near-field characteristics with localized modes. Here, a comparison of experimental results and simulation results obtained with three different simulation methods is presented. We fabricated and characterized multiperiodic nanostructured dielectric waveguides with two and three compound periods as well as deterministic aperiodic nanostructured waveguides based on Rudin–Shapiro, Fibonacci, and Thue–Morse binary sequences. The near-field and far-field properties are computed employing the finite-element method (FEM), the finite-difference time-domain (FDTD) method as well as a rigorous coupled wave algorithm (RCWA). The results show that all three methods are suitable for the simulation of the above mentioned structures. Only small computational differences are obtained in the near fields and transmission characteristics. For the compound multiperiodic structures the simulations correctly predict the general shape of the experimental transmission spectra with number and magnitude of transmission dips. For the aperiodic nanostructures the agreement between simulations and measurements decreases, which we attribute to imperfect fabrication at smaller feature sizes.
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spelling pubmed-70626522020-03-23 Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides Paulsen, Moritz Neustock, Lars Thorben Jahns, Sabrina Adam, Jost Gerken, Martina Opt Quantum Electron Article Nanostructured dielectric waveguides are of high interest for biosensing applications, light emitting devices as well as solar cells. Multiperiodic and aperiodic nanostructures allow for custom-designed spectral properties as well as near-field characteristics with localized modes. Here, a comparison of experimental results and simulation results obtained with three different simulation methods is presented. We fabricated and characterized multiperiodic nanostructured dielectric waveguides with two and three compound periods as well as deterministic aperiodic nanostructured waveguides based on Rudin–Shapiro, Fibonacci, and Thue–Morse binary sequences. The near-field and far-field properties are computed employing the finite-element method (FEM), the finite-difference time-domain (FDTD) method as well as a rigorous coupled wave algorithm (RCWA). The results show that all three methods are suitable for the simulation of the above mentioned structures. Only small computational differences are obtained in the near fields and transmission characteristics. For the compound multiperiodic structures the simulations correctly predict the general shape of the experimental transmission spectra with number and magnitude of transmission dips. For the aperiodic nanostructures the agreement between simulations and measurements decreases, which we attribute to imperfect fabrication at smaller feature sizes. Springer US 2017-02-16 2017 /pmc/articles/PMC7062652/ /pubmed/32214612 http://dx.doi.org/10.1007/s11082-017-0918-6 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Paulsen, Moritz
Neustock, Lars Thorben
Jahns, Sabrina
Adam, Jost
Gerken, Martina
Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title_full Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title_fullStr Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title_full_unstemmed Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title_short Simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
title_sort simulation methods for multiperiodic and aperiodic nanostructured dielectric waveguides
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7062652/
https://www.ncbi.nlm.nih.gov/pubmed/32214612
http://dx.doi.org/10.1007/s11082-017-0918-6
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