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Multidimensional hybridization of dark surface plasmons

Yankovich, Andrew B. ; Verre, Ruggero ; Olsén, Erik ; Persson, Anton E. O. LU orcid ; Trinh, Viet ; Dovner, Gudrun ; Käll, Mikael and Olsson, Eva (2017) In ACS Nano 11(4).
Abstract
Synthetic three-dimensional (3D) nanoarchitectures are providing more control over light–matter interactions and rapidly progressing photonic-based technology. These applications often utilize the strong synergy between electromagnetic fields and surface plasmons (SPs) in metallic nanostructures. However, many of the SP interactions hosted by complex 3D nanostructures are poorly understood because they involve dark hybridized states that are typically undetectable with far-field optical spectroscopy. Here, we use experimental and theoretical electron energy loss spectroscopy to elucidate dark SPs and their interactions in layered metal-insulator-metal disc nanostructures. We go beyond the established dipole SP hybridization analysis by... (More)
Synthetic three-dimensional (3D) nanoarchitectures are providing more control over light–matter interactions and rapidly progressing photonic-based technology. These applications often utilize the strong synergy between electromagnetic fields and surface plasmons (SPs) in metallic nanostructures. However, many of the SP interactions hosted by complex 3D nanostructures are poorly understood because they involve dark hybridized states that are typically undetectable with far-field optical spectroscopy. Here, we use experimental and theoretical electron energy loss spectroscopy to elucidate dark SPs and their interactions in layered metal-insulator-metal disc nanostructures. We go beyond the established dipole SP hybridization analysis by measuring breathing and multipolar SP hybridization. In addition, we reveal multidimensional SP hybridization that simultaneously utilizes in-plane and out-of-plane SP coupling. Near-field classic electrodynamics calculations provide excellent agreement with all experiments. These results advance the fundamental understanding of SP hybridization in 3D nanostructures and provide avenues to further tune the interaction between electromagnetic fields and matter.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
ACS Nano
volume
11
issue
4
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85018647122
ISSN
1936-086X
DOI
10.1021/acsnano.7b01318
language
English
LU publication?
no
id
2c2dab57-8ab3-4002-b79c-8d5e09713633
date added to LUP
2021-12-03 09:59:46
date last changed
2023-01-24 21:49:40
@article{2c2dab57-8ab3-4002-b79c-8d5e09713633,
  abstract     = {{Synthetic three-dimensional (3D) nanoarchitectures are providing more control over light–matter interactions and rapidly progressing photonic-based technology. These applications often utilize the strong synergy between electromagnetic fields and surface plasmons (SPs) in metallic nanostructures. However, many of the SP interactions hosted by complex 3D nanostructures are poorly understood because they involve dark hybridized states that are typically undetectable with far-field optical spectroscopy. Here, we use experimental and theoretical electron energy loss spectroscopy to elucidate dark SPs and their interactions in layered metal-insulator-metal disc nanostructures. We go beyond the established dipole SP hybridization analysis by measuring breathing and multipolar SP hybridization. In addition, we reveal multidimensional SP hybridization that simultaneously utilizes in-plane and out-of-plane SP coupling. Near-field classic electrodynamics calculations provide excellent agreement with all experiments. These results advance the fundamental understanding of SP hybridization in 3D nanostructures and provide avenues to further tune the interaction between electromagnetic fields and matter.<br/><br/>}},
  author       = {{Yankovich, Andrew B. and Verre, Ruggero and Olsén, Erik and Persson, Anton E. O. and Trinh, Viet and Dovner, Gudrun and Käll, Mikael and Olsson, Eva}},
  issn         = {{1936-086X}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{4}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Nano}},
  title        = {{Multidimensional hybridization of dark surface plasmons}},
  url          = {{http://dx.doi.org/10.1021/acsnano.7b01318}},
  doi          = {{10.1021/acsnano.7b01318}},
  volume       = {{11}},
  year         = {{2017}},
}