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Anapole metallic nanostructures for metarsurface applications
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik. Department of Electronics and Electrical Communications, Menoufia University, Menouf, Egypt.ORCID-id: 0000-0002-1318-7519
Institute of Quantum Optics and Cluster of Excellence PhoenixD, Leibniz University Hannover, Hannover, Germany.
Hannover Centre for Optical Technologies, Institute for Transport and Automation Technology (Faculty of Mechanical Engineering) and Cluster of Excellence PhoenixD, Leibniz University Hannover, Hannover, Germany.
2023 (Engelska)Ingår i: META 2023 Paris - France. The 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics: Proceedings / [ed] Philippe Lalanne; Said Zouhdi, META Conference , 2023, s. 583-583Konferensbidrag, Muntlig presentation med publicerat abstract (Refereegranskat)
Abstract [en]

Anapole states are broadly investigated in nanophotonics for their ability to provide field enhancement and transparency. While low extinction has been achieved in dielectric nanoparticles due to the absence of intrinsic losses, in the case of plasmonic nanostructures this is still elusive. In this talk, we will present recent findings on anapole states in planar plasmonic nanostructures that were optimized for near-fieldenergy enhancement using a topology optimization approach. The optimized structures exhibit an anapole state with characteristic properties in the visible regime including weak absorption, high near-field enhancement outside the structure, and strong suppression of scattering. We use our multipole analysis to explain both thenear-field and the far-field features of the anapole state possessed by the nanostructures. Because of the low inter-coupling at the anapole state, the nanostructures act as individual meta-atoms that preserve their optical response even when used in highly packed metasurfaces and metamaterials. Due to their transparency while providing field enhancement, anapoles might be combined with waveguides in integrated optical platforms to unlock advanced functionalities for sensing, nonlinear optics, and optical information processing. 

Ort, förlag, år, upplaga, sidor
META Conference , 2023. s. 583-583
Serie
META proceedings, E-ISSN 2429-1390
Nationell ämneskategori
Annan fysik Den kondenserade materiens fysik Atom- och molekylfysik och optik
Identifikatorer
URN: urn:nbn:se:umu:diva-215952Scopus ID: 2-s2.0-85174566591OAI: oai:DiVA.org:umu-215952DiVA, id: diva2:1808195
Konferens
13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023, Paris, France, July 18-21, 2023
Tillgänglig från: 2023-10-30 Skapad: 2023-10-30 Senast uppdaterad: 2023-10-30Bibliografiskt granskad

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Hassan, Emadeldeen

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Annan fysikDen kondenserade materiens fysikAtom- och molekylfysik och optik

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