Microscopy of terahertz spoof surface plasmons propagating on planar metamaterial waveguides Article Swipe
Nikollao Sulollari
,
S. J. Park
,
Mohammed Salih
,
Pierluigi Rubino
,
Andrew D. Burnett
,
Lianhe Li
,
E. H. Linfield
,
A. G. Davies
,
J. E. Cunningham
,
Paul Dean
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0190488
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0190488
Surface plasmon polaritons (SPPs) are electromagnetic waves that have attracted significant interest owing to their subwavelength confinement and the strong field enhancement that they provide. Yet in the terahertz (THz) frequency region of the spectrum, which is well below the plasma frequency of metals, these surface waves are characterized by extremely weak confinement that has severely limited their exploitation for information processing and sensing. One means to circumvent this limitation is through subwavelength structuring of a metallic surface, which can thereby be engineered to support the propagation of spoof surface plasmon polaritons (SSPPs) that closely mimic the properties of SPPs. In this work, we report the design and experimental characterization of an ultra-thin metamaterial planar waveguide that supports SSPPs at THz frequencies. Finite-element method simulations are shown to predict the excitation of SSPPs on the surface of our devices under free-space illumination at 3.45 THz. We investigate these structures experimentally using THz scattering-type scanning near-field microscopy (THz-s-SNOM) to map directly the out-of-plane electric field associated with the propagation of SSPPs on the surface of the waveguides. Our work paves the way for the future development of plasmonic integrated circuit technologies and components operating in the THz frequency band.
Related Topics
Concepts
Terahertz radiation
Metamaterial
Planar
Optics
Surface plasmon
Plasmon
Optoelectronics
Materials science
Microscopy
Terahertz metamaterials
Surface plasmon polariton
Physics
Computer science
Far-infrared laser
Computer graphics (images)
Laser
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1063/5.0190488
- https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0190488/19853266/031307_1_5.0190488.pdf
- OA Status
- gold
- Cited By
- 4
- References
- 45
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4393180755
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4393180755Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1063/5.0190488Digital Object Identifier
- Title
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Microscopy of terahertz spoof surface plasmons propagating on planar metamaterial waveguidesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2024Year of publication
- Publication date
-
2024-03-01Full publication date if available
- Authors
-
Nikollao Sulollari, S. J. Park, Mohammed Salih, Pierluigi Rubino, Andrew D. Burnett, Lianhe Li, E. H. Linfield, A. G. Davies, J. E. Cunningham, Paul DeanList of authors in order
- Landing page
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https://doi.org/10.1063/5.0190488Publisher landing page
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https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0190488/19853266/031307_1_5.0190488.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
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https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0190488/19853266/031307_1_5.0190488.pdfDirect OA link when available
- Concepts
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Terahertz radiation, Metamaterial, Planar, Optics, Surface plasmon, Plasmon, Optoelectronics, Materials science, Microscopy, Terahertz metamaterials, Surface plasmon polariton, Physics, Computer science, Far-infrared laser, Computer graphics (images), LaserTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
4Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 1, 2024: 3Per-year citation counts (last 5 years)
- References (count)
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45Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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