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  • Kang, Evan S. H.Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Chungbuk Natl Univ, South Korea,Chalmers Univ Technol, Sweden (author)

Organic Anisotropic Excitonic Optical Nanoantennas

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-05-26
  • Wiley,2022
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:14e20bab-8a24-4d31-9ef8-192ff125d344
  • https://doi.org/10.1002/advs.202201907DOI
  • https://research.chalmers.se/publication/530743URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-185590URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Funding Agencies|AngstromForsk Foundation; Knut and Alice Wallenberg Foundation; Swedish Research Council (VR); Swedish Foundation for Strategic Research (SSF); Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]; National Research Foundation of Korea (NRF) [2020R1A2C1102558]; Commercializations Promotion Agency for R&D Outcomes Grant (2022, Research Equipment Technician Training Program) - Korea government (MSIT) [2018R1A6A9056986]; Regional Innovation Strategy (RIS) - Ministry of Education (MOE) [2021RIS-001]; Korea Evaluation Institute of Industrial Technology (KEIT) [20015764]; Korea government (MOTIE) [20005750]
  • Optical nanoantennas provide control of light at the nanoscale, which makes them important for diverse areas ranging from photocatalysis and flat metaoptics to sensors and biomolecular tweezing. They have traditionally been limited to metallic and dielectric nanostructures that sustain plasmonic and Mie resonances, respectively. More recently, nanostructures of organic J-aggregate excitonic materials have been proposed capable of also supporting nanooptical resonances, although their advance has been hampered from difficulty in nanostructuring. Here, the authors present the realization of organic J-aggregate excitonic nanostructures, using nanocylinder arrays as model system. Extinction spectra show that they can sustain both plasmon-like resonances and dielectric resonances, owing to the material providing negative and large positive permittivity regions at the different sides of its exciton resonance. Furthermore, it is found that the material is highly anisotropic, leading to hyperbolic and elliptic permittivity regions. Nearfield analysis using optical simulation reveals that the nanostructures therefore support hyperbolic localized surface exciton resonances and elliptic Mie resonances, neither of which has been previously demonstrated for this type of material. The anisotropic nanostructures form a new type of optical nanoantennas, which combined with the presented fabrication process opens up for applications such as fully organic excitonic metasurfaces.

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  • Kesarimangalam, Sriram,1983Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sriramk (author)
  • Jeon, InhoChungbuk National University,Chungbuk Natl Univ, South Korea (author)
  • Kim, JehanPohang University of Science and Technology,Pohang Univ Sci & Technol, South Korea (author)
  • Chen, ShangzhiLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)shach90 (author)
  • Kim, Kyoung-HoChungbuk National University,Chungbuk Natl Univ, South Korea (author)
  • Kim, Ka-HyunChungbuk National University,Chungbuk Natl Univ, South Korea (author)
  • Lee, Hyun SeokChungbuk National University,Chungbuk Natl Univ, South Korea (author)
  • Westerlund, Fredrik,1978Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden(Swepub:cth)fredrikw (author)
  • Jonsson, Magnus,1981-Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)magjo02 (author)
  • Linköpings universitetLaboratoriet för organisk elektronik (creator_code:org_t)

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  • In:Advanced Science: Wiley9:232198-38442198-3844

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