Near-infrared dual-wavelength plasmonic switching and digital metasurface unveiled by plasmonic Fano resonance
Abstract: Plasmonic Fano resonance (FR) that contributes to multitudinous potential applications in subwavelength nanostructures can facilitate the realization of tunable wavelength selectivity for controlling light–matter interactions in metasurfaces. However, the plasmonic FR can be generated in metasurfaces with simple or complex geometries, and few of them can support flexible amplitude modulation and multiwavelength information transfer and processing. Here, we study the near-infrared plasmonic FR in a hybrid metasurface composed of concentrically hybridized parabolic-hole and circular-ring-aperture unit cells, which can induce polarization-dependent dual-wavelength passive plasmonic switching (PPS) and digital metasurface (DM). It is shown that the designable plasmonic FR can be realized by changing the geometric configurations of the unit cells. In particular, owing to the polarization-dependent characteristic of FR, it is possible to fulfill a compact dual-wavelength PPS with high ON/OFF ratios in the related optical communication bands. Moreover, such PPS that manipulates the amplitude response of the transmitted spectrum is an efficient way to reveal a 1-bit DM, which can also be rationally extended to a 2-bit DM or more. Our results suggest a pathway for studying polarization-dependent PPS and programmable metasurface devices, yielding possibilities for subwavelength nanostructures in optical communication and information processing.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Near-infrared dual-wavelength plasmonic switching and digital metasurface unveiled by plasmonic Fano resonance ; volume:10 ; number:2 ; year:2020 ; pages:947-957 ; extent:11
Nanophotonics ; 10, Heft 2 (2020), 947-957 (gesamt 11)
- Creator
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Ou, Jie
Luo, Xiao-Qing
Luo, You-Lin
Zhu, Wei-Hua
Chen, Zhi-Yong
Liu, Wu-Ming
Wang, Xin-Lin
- DOI
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10.1515/nanoph-2020-0511
- URN
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urn:nbn:de:101:1-2022111513353082161921
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:32 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Ou, Jie
- Luo, Xiao-Qing
- Luo, You-Lin
- Zhu, Wei-Hua
- Chen, Zhi-Yong
- Liu, Wu-Ming
- Wang, Xin-Lin
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