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3 October 2024 Electrically switchable metallic polymer nanoantennas and metasurfaces for functional plasmonics
Harald Giessen
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Proceedings Volume PC13111, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXII; PC131110A (2024) https://doi.org/10.1117/12.3028236
Event: Nanoscience + Engineering, 2024, San Diego, California, United States
Abstract
High-resolution spatial light modulators are key elements in augmented and virtual reality systems, as well as in advanced LIDAR and angle-dependent sensors as well as advanced imaging systems. Hybrid devices containing liquid crystals, polymers, in combination with plasmonic or dielectric nanoantennas are state of the art. We pursue a different avenue which utilizes conductive polymers, consisting of PEDOT:PSS nanoantennas, who undergo a metal-to-insulator phase transition upon electrical switching in CMOS compatible voltage ranges. In order to reach the required spatial resolution for holograms with high fields of view, we directly pattern PEDOT:PSS by electron beam lithography. This way, 250 nm line widths in metasurface structures have been obtained. By using planar technologies, high-resolution active PEDOT metasurface switching is also attainable. Finally, we are going to demonstrate switching of optical metasurface resonances by a metal-to-insulator transition in inorganic materials.
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Harald Giessen "Electrically switchable metallic polymer nanoantennas and metasurfaces for functional plasmonics", Proc. SPIE PC13111, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXII, PC131110A (3 October 2024); https://doi.org/10.1117/12.3028236
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KEYWORDS
Switching
Imaging systems
Nanoantennas
Polymers
Transition metals
Liquid crystals
Optical switching
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