Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer

The emergence of multilayer metamaterials in the research field of enhancing spontaneous emission rates has recently received extensive attention. Previous research efforts mostly focus on periodic metal-dielectric multilayers in hyperbolic dispersion region; however, the influence of lattice order...

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Autores principales: Li, Ling, Mathai, Cherian J., Gangopadhyay, Shubhra, Yang, Xiaodong, Gao, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6560104/
https://www.ncbi.nlm.nih.gov/pubmed/31186473
http://dx.doi.org/10.1038/s41598-019-44901-0
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author Li, Ling
Mathai, Cherian J.
Gangopadhyay, Shubhra
Yang, Xiaodong
Gao, Jie
author_facet Li, Ling
Mathai, Cherian J.
Gangopadhyay, Shubhra
Yang, Xiaodong
Gao, Jie
author_sort Li, Ling
collection PubMed
description The emergence of multilayer metamaterials in the research field of enhancing spontaneous emission rates has recently received extensive attention. Previous research efforts mostly focus on periodic metal-dielectric multilayers in hyperbolic dispersion region; however, the influence of lattice order in subwavelength multilayers on spontaneous emission is rarely studied. Here, we observe the stronger Purcell enhancement of quantum dots coupled to the aperiodic metal-dielectric multilayer with Thue-Morse lattice order from elliptical to hyperbolic dispersion regions, compared to the periodic multilayer with the same metal filling ratio. This work demonstrates the potential of utilizing quasiperiodic metamaterial nanostructures to engineer the local density of states for various nanophotonic applications.
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spelling pubmed-65601042019-06-19 Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer Li, Ling Mathai, Cherian J. Gangopadhyay, Shubhra Yang, Xiaodong Gao, Jie Sci Rep Article The emergence of multilayer metamaterials in the research field of enhancing spontaneous emission rates has recently received extensive attention. Previous research efforts mostly focus on periodic metal-dielectric multilayers in hyperbolic dispersion region; however, the influence of lattice order in subwavelength multilayers on spontaneous emission is rarely studied. Here, we observe the stronger Purcell enhancement of quantum dots coupled to the aperiodic metal-dielectric multilayer with Thue-Morse lattice order from elliptical to hyperbolic dispersion regions, compared to the periodic multilayer with the same metal filling ratio. This work demonstrates the potential of utilizing quasiperiodic metamaterial nanostructures to engineer the local density of states for various nanophotonic applications. Nature Publishing Group UK 2019-06-11 /pmc/articles/PMC6560104/ /pubmed/31186473 http://dx.doi.org/10.1038/s41598-019-44901-0 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Li, Ling
Mathai, Cherian J.
Gangopadhyay, Shubhra
Yang, Xiaodong
Gao, Jie
Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title_full Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title_fullStr Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title_full_unstemmed Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title_short Spontaneous emission rate enhancement with aperiodic Thue-Morse multilayer
title_sort spontaneous emission rate enhancement with aperiodic thue-morse multilayer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6560104/
https://www.ncbi.nlm.nih.gov/pubmed/31186473
http://dx.doi.org/10.1038/s41598-019-44901-0
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