Cargando…
Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial
In this work, we study the effect of spatial dispersion on propagation properties of planar waveguides with the core layer formed by hyperbolic metamaterial (HMM). In our case, the influence of spatial dispersion was controlled by changing the unit cell’s dimensions. Our analysis revealed a number o...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8624703/ https://www.ncbi.nlm.nih.gov/pubmed/34832285 http://dx.doi.org/10.3390/ma14226885 |
_version_ | 1784606239158697984 |
---|---|
author | Janaszek, Bartosz Tyszka-Zawadzka, Anna Szczepański, Paweł |
author_facet | Janaszek, Bartosz Tyszka-Zawadzka, Anna Szczepański, Paweł |
author_sort | Janaszek, Bartosz |
collection | PubMed |
description | In this work, we study the effect of spatial dispersion on propagation properties of planar waveguides with the core layer formed by hyperbolic metamaterial (HMM). In our case, the influence of spatial dispersion was controlled by changing the unit cell’s dimensions. Our analysis revealed a number of new effects arising in the considered waveguides, which cannot be predicted with the help of local approximation, including mode degeneration (existence of additional branch of TE and TM high-β modes), power flow inversion, propagation gap, and plasmonic-like modes characterized with long distance propagation. Additionally, for the first time we reported unusual characteristic points appearing for the high-β TM mode of each order corresponding to a single waveguide width for which power flow tends to zero and mode stopping occurs. |
format | Online Article Text |
id | pubmed-8624703 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86247032021-11-27 Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial Janaszek, Bartosz Tyszka-Zawadzka, Anna Szczepański, Paweł Materials (Basel) Article In this work, we study the effect of spatial dispersion on propagation properties of planar waveguides with the core layer formed by hyperbolic metamaterial (HMM). In our case, the influence of spatial dispersion was controlled by changing the unit cell’s dimensions. Our analysis revealed a number of new effects arising in the considered waveguides, which cannot be predicted with the help of local approximation, including mode degeneration (existence of additional branch of TE and TM high-β modes), power flow inversion, propagation gap, and plasmonic-like modes characterized with long distance propagation. Additionally, for the first time we reported unusual characteristic points appearing for the high-β TM mode of each order corresponding to a single waveguide width for which power flow tends to zero and mode stopping occurs. MDPI 2021-11-15 /pmc/articles/PMC8624703/ /pubmed/34832285 http://dx.doi.org/10.3390/ma14226885 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Janaszek, Bartosz Tyszka-Zawadzka, Anna Szczepański, Paweł Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title | Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title_full | Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title_fullStr | Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title_full_unstemmed | Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title_short | Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial |
title_sort | influence of spatial dispersion on propagation properties of waveguides based on hyperbolic metamaterial |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8624703/ https://www.ncbi.nlm.nih.gov/pubmed/34832285 http://dx.doi.org/10.3390/ma14226885 |
work_keys_str_mv | AT janaszekbartosz influenceofspatialdispersiononpropagationpropertiesofwaveguidesbasedonhyperbolicmetamaterial AT tyszkazawadzkaanna influenceofspatialdispersiononpropagationpropertiesofwaveguidesbasedonhyperbolicmetamaterial AT szczepanskipaweł influenceofspatialdispersiononpropagationpropertiesofwaveguidesbasedonhyperbolicmetamaterial |