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Article
Spontaneous Emission Rate Enhancement with Aperiodic Thue-Morse Multilayer
Scientific Reports
  • Ling Li
  • Cherian J. Mathai
  • Shubhra Gangopadhyay
  • Xiaodong Yang, Missouri University of Science and Technology
  • Jie Gao, Missouri University of Science and Technology
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.

Department(s)
Mechanical and Aerospace Engineering
Comments
All authors acknowledge National Science Foundation (ECCS-1653032 and DMR-1552871), Office of Naval Research (N00014-16-1-2408) for the financial support.
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2019The Author(s), All rights reserved.
Creative Commons Licensing
Creative Commons Attribution 4.0
Publication Date
12-1-2019
PubMed ID
31186473
Citation Information
Ling Li, Cherian J. Mathai, Shubhra Gangopadhyay, Xiaodong Yang, et al.. "Spontaneous Emission Rate Enhancement with Aperiodic Thue-Morse Multilayer" Scientific Reports Vol. 9 Iss. 1 (2019) ISSN: 2045-2322
Available at: http://works.bepress.com/xiaodong-yang/170/