Abstract
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.
Recommended Citation
L. Li et al., "Spontaneous Emission Rate Enhancement with Aperiodic Thue-Morse Multilayer," Scientific Reports, vol. 9, no. 1, Nature Publishing Group, Dec 2019.
The definitive version is available at https://doi.org/10.1038/s41598-019-44901-0
Department(s)
Mechanical and Aerospace Engineering
Research Center/Lab(s)
Intelligent Systems Center
Second Research Center/Lab
Center for Research in Energy and Environment (CREE)
International Standard Serial Number (ISSN)
2045-2322
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2019The Author(s), All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Dec 2019
PubMed ID
31186473
Comments
All authors acknowledge National Science Foundation (ECCS-1653032 and DMR-1552871), Office of Naval Research (N00014-16-1-2408) for the financial support.