Avoided resonance crossing and non-reciprocal nearly perfect absorption in plasmonic nanodisks with near-field and far-field couplings

Shih-hui Chang, Chia Yi Sun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Avoided resonance crossings (ARC) in plasmonic nanodisk structures due to near field or far field couplings were numerically demonstrated. Near field coupling in disk dimmer leads to both energy and linewidth anti-crossing as one disk size approach the other. Far field coupling in double layered disk arrays also leads to linewidth anti-crossing but energy crossing of the absorption spectrum illuminated from different sides. We observed the disappearing of Fabry- Perot resonant mode and the nonreciprocal nearly perfect absorption. These phenomena are explained by a Frequency-Selective-Surface-Fabry-Perot model.

Original languageEnglish
Title of host publicationFrontiers in Optics, FiO 2016
PublisherOSA - The Optical Society
ISBN (Print)9781943580194
DOIs
Publication statusPublished - 2016
EventFrontiers in Optics, FiO 2016 - Rochester, United States
Duration: 2016 Oct 172016 Oct 21

Other

OtherFrontiers in Optics, FiO 2016
CountryUnited States
CityRochester
Period16-10-1716-10-21

Fingerprint

Linewidth
Frequency selective surfaces
Absorption spectra

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Cite this

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title = "Avoided resonance crossing and non-reciprocal nearly perfect absorption in plasmonic nanodisks with near-field and far-field couplings",
abstract = "Avoided resonance crossings (ARC) in plasmonic nanodisk structures due to near field or far field couplings were numerically demonstrated. Near field coupling in disk dimmer leads to both energy and linewidth anti-crossing as one disk size approach the other. Far field coupling in double layered disk arrays also leads to linewidth anti-crossing but energy crossing of the absorption spectrum illuminated from different sides. We observed the disappearing of Fabry- Perot resonant mode and the nonreciprocal nearly perfect absorption. These phenomena are explained by a Frequency-Selective-Surface-Fabry-Perot model.",
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Chang, S & Sun, CY 2016, Avoided resonance crossing and non-reciprocal nearly perfect absorption in plasmonic nanodisks with near-field and far-field couplings. in Frontiers in Optics, FiO 2016. OSA - The Optical Society, Frontiers in Optics, FiO 2016, Rochester, United States, 16-10-17. https://doi.org/10.1364/FIO.2016.JTh2A.165

Avoided resonance crossing and non-reciprocal nearly perfect absorption in plasmonic nanodisks with near-field and far-field couplings. / Chang, Shih-hui; Sun, Chia Yi.

Frontiers in Optics, FiO 2016. OSA - The Optical Society, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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